Steelview

Iran's Government and Its People: Elections, Opinion and Repression, 1980–2026

Turnout has fallen to record lows, few candidates are allowed to stand, and executions and protest killings have reached levels not recorded in decades, with real but narrow signs of moderation. [1][13][20][21][35]

Turnout in presidential elections, Iran, 1980–2024

Turnout, first or only round

Votes cast as a share of eligible voters in each presidential election's first (or only) round. The source changes in 2017, marked as a break.

% of eligible voters, by election month

Votes cast as a share of eligible voters in each presidential election's first (or only) round. The source changes in 2017, marked as a break. Read as turnout, first or only round: % of eligible voters. Dashed segments cross 1 definitional break in the source, explained in Method Changes below this graph. 5 dated events are numbered on a strip under the graph and listed below it. Use the Table switch to see every value.

  • Turnout
40%60%80%19802000202440%50%60%70%80%90%198019902000201020202024

Events marked above

  1. Reformist papers closed

    Sixteen publications closed in one week under President Khatami.

    Source: Committee to Protect Journalists [17]

  2. Majlis vetting purge

    The Guardian Council rejected 3,600 of 8,157 parliamentary candidates, including 83 sitting members.

    Source: The Washington Institute for Near East Policy [18]

  3. November 2019 crackdown
  4. Woman, Life, Freedom protests begin
  5. President Raisi dies; early election

Vertical dashed lines mark measurement changes. See method changes.

Source: Iran Data Portal, Syracuse University [33]

Observations 2
The two lowest presidential turnouts are the last two elections

Turnout fell to 48.8 percent in 2021 and to 40 percent in the 2024 first round, each a record low since 1979 (chart). 21

Parliamentary turnout fell the same way, to the lowest since the revolution in 2024 (chart below). 24 Earlier swings were large: turnout was highest in 1997 and 2009 (chart). 33

In 2024 voters elected the one moderate in the field

After Raisi's death, Masoud Pezeshkian, "the sole moderate in an original field of four", won the runoff with 53.7 percent of the vote. 22

Turnout rose to 49.8 percent in the runoff, about ten points above the first round. 22 21 He was one of only six candidates the Guardian Council approved (next chart). 23

Method Changes
2017-05: Source changes to news reports

The Iran Data Portal workbook ends in 2013. Later points are Interior Ministry turnout figures as quoted by Al Jazeera. The sources disagree for 2013: the workbook gives 76.25, IFES ElectionGuide 72.71. [33]

About this data

Full published range: 1980-01–2024-06. Every plotted line runs the whole of it – 1980 to 2013 are the "Iran (total)" row of the Iran Data Portal workbook, which gives years only; points are placed at each election's month. 2017 to 2024 are Interior Ministry figures as reported by Al Jazeera, because the workbook stops in 2013. Two elections were held in 1981. Runoffs (2005, 2024) are not plotted: 59.76 in the 2005 runoff (Data Portal) and 49.8 percent in the 2024 runoff (Al Jazeera).

Presidential candidates registered and allowed to run, Iran, 1980–2024

Candidates registered and allowed

How many people registered for each presidential election and how many the Ministry of Interior and Guardian Council allowed to run, with the share allowed.

Candidates, by election month

How many people registered for each presidential election and how many the Ministry of Interior and Guardian Council allowed to run, with the share allowed. Read as candidates registered and allowed: Candidates. Dashed segments cross 1 definitional break in the source, explained in Method Changes below this graph. Use the Table switch to see every value.

  • Registered
  • Allowed to run
05001k1.5k19802000202402505007501k1.25k1.5k1.75k198019902000201020202024

Vertical dashed lines mark measurement changes. See method changes.

Source: Iran Data Portal, Syracuse University [34]

Method Changes
2021-06: Source changes to news reports

The Iran Data Portal infographic ends in 2017; later counts are from news reports of the Guardian Council's lists. [34]

Share of registrants allowed to run

% of registrants allowed, by election month

How many people registered for each presidential election and how many the Ministry of Interior and Guardian Council allowed to run, with the share allowed. Read as share of registrants allowed to run: % of registrants allowed. Dashed segments cross 1 definitional break in the source, explained in Method Changes below this graph. Use the Table switch to see every value.

  • Share allowed
0%40%80%1980200020240%20%40%60%80%198019902000201020202024

Vertical dashed lines mark measurement changes. See method changes.

Source: Iran Data Portal, Syracuse University [34]

Observations 2
The Guardian Council allows very few registrants to run

From 2001 to 2021, about one in a hundred or fewer of those who registered for president were allowed to run (chart). 34 20 In 2021 none of the 40 women who registered was approved. 20

In 2024 the share was higher, six of "more than 80", but well-known figures such as Ali Larijani and Mahmoud Ahmadinejad were barred. 23

Parliament is vetted too, and a reformist parliament was purged in 2004

In January 2004 the Guardian Council rejected 3,600 parliamentary candidates, including dozens of sitting members (timeline below). About a thousand were reinstated after a third of the Majlis resigned. 18

In 2024 it barred a smaller share of sitting members who sought re-election. 19

Method Changes
2021-06: Source changes to news reports

The Iran Data Portal infographic ends in 2017; later counts are from news reports of the Guardian Council's lists. [34]

About this data

Full published range: 1980-01–2024-06. Every plotted line runs the whole of it – 1980 to 2017 are from the Iran Data Portal infographic, an image: the registered counts are printed numbers and the allowed counts are icons, one per candidate, counted by hand. 2021 is from Al Jazeera and 2024 from Iran International. For 2024 the source says only "more than 80" registered, so 80 is plotted and the share (6 ÷ 80 = 7.5%) is an upper bound. Shares are calculated here as allowed ÷ registered, to one decimal place.

Share of registrants allowed to run

Calculated as allowed ÷ registered. The 2024 value is an upper bound because more than 80 registered.

Executions per year in Iran, counted by Iran Human Rights (IHRNGO), 2008–2025

Executions recorded by IHRNGO

Executions IHRNGO confirmed from at least two sources, each year since its first annual report. These are minimums. Presidents' terms and the June 2025 war are marked under the chart.

Executions (minimum), by calendar year

Executions IHRNGO confirmed from at least two sources, each year since its first annual report. These are minimums. Presidents' terms and the June 2025 war are marked under the chart. Read as executions recorded by IHRNGO: Executions (minimum). 6 dated events are numbered on a strip under the graph and listed below it. Use the Table switch to see every value.

  • IHRNGO
2006001k1.4k1.8k2008202020252004006008001k1.2k1.4k1.6k1.8k2008201020202025

Events marked above

  1. Rouhani takes office
  2. Drug-law amendment

    The 2017 amendment to the Anti-Narcotics Law narrowed the death penalty for drug offences; IHRNGO says it has been "reversed in practice" since 2021.

    Source: Iran Human Rights (IHRNGO) and ECPM [35]

  3. Raisi takes office
  4. Woman, Life, Freedom protests
  5. Pezeshkian takes office
  6. Twelve-day war with Israel

Source: Iran Human Rights (IHRNGO) and ECPM [35]

Observations 4
Executions in 2025 were the most since 1989

IHRNGO recorded at least 1,639 executions in 2025, the highest number since 1989 (chart). 35 Its count has risen every year since 2020.

Amnesty's separate count for 2025 is higher still (chart below). 25

Executions rose fastest under Pezeshkian

The monthly rate under Pezeshkian is more than double the rate under Raisi, by IHRNGO's count (chart below). 35

IHRNGO describes "a consistent upward trend ... regardless of the president in power". 35

A fall after 2015 followed a drug-law change that has since been undone

Executions fell sharply from 2016 to 2020 (chart). IHRNGO links the decline to the 2017 drug-law amendment, which narrowed the death penalty for drug offences. 35

It says the amendment "has been reversed in practice" since 2021: drug executions averaged 26 a year in 2018–2020 and reached at least 795 in 2025. 35

Executions surged after the June 2025 war

IHRNGO says "a new surge in executions began in the months after the 12-day war" and that 60% of 2025's executions came in the second half of the year. 35

It finds executions "tend to increase when authorities fear social unrest and when the attention of the international community is focused on other geopolitical issues". 35 The UN mission called October 2025's total "the highest monthly total recorded in at least 25 years". 4

About this data

Full published range: 2008–2025. Every plotted line runs the whole of it – IHRNGO's whole published series, from the bar labels of its chart "Execution trends in the last 18 years (2008-2025)", which sum to its stated total of 11,196. The 2026 report is not yet published.

Executions per October-to-October year in Iran, counted by HRANA, 2016–17 to 2025–26

Executions documented by HRANA

Executions documented by HRANA's Statistics Center in each reporting year, which runs from about 10 October to 8 October. Each point is placed at the October in which the year ends.

Executions (minimum), by reporting year ending in October

Executions documented by HRANA's Statistics Center in each reporting year, which runs from about 10 October to 8 October. Each point is placed at the October in which the year ends. Read as executions documented by HRANA: Executions (minimum). 2 dated events are numbered on a strip under the graph and listed below it. Use the Table switch to see every value.

  • HRANA
01k2k201720182019202020212022202320242025202605001k1.5k2k2.5k2017201820192020202120222023202420252026

Events marked above

  1. Twelve-day war with Israel
  2. US and Israeli strikes begin (28 Feb)

Source: HRANA (Human Rights Activists in Iran Statistics Center) [36]

Observations 1
A third counter shows the same rise

HRANA counts from October to October. Its latest year, to October 2026, was its highest in ten reporting years (chart). 36

Like IHRNGO, it shows a low around 2018–19 and a rise every year since.

About this data

Full published range: 2017-10–2026-10. Every plotted line runs the whole of it – HRANA's ten published reporting periods. HRANA says its 2024–25 figure was "updated based on supplementary data and may differ from those published in last year's report".

Executions per month in Iran, all and political or security-related, counted by HRANA, October 2025 – October 2026

All executions

Executions HRANA documented in each month of its latest reporting year, and the subset on political and security-related charges. October 2025 covers only the last 22 days and October 2026 the first seven.

Executions per month, by month

Executions HRANA documented in each month of its latest reporting year, and the subset on political and security-related charges. October 2025 covers only the last 22 days and October 2026 the first seven. Read as all executions: Executions per month. 5 dated events are numbered on a strip under the graph and listed below it. Use the Table switch to see every value.

  • All executions
0200400Oct 2025Jan 2026AprJulOct0100200300400500Oct 2025NovDecJan 2026FebMarAprMayJunJulAugSepOct

Events marked above

  1. Nationwide protests and crackdown

    HRANA's 50-day record runs from 28 December 2025.

    Source: HRANA (Human Rights Activists News Agency) [1]

  2. US and Israeli strikes begin (28 Feb)
  3. Ceasefire (8 Apr)
  4. Memorandum signed (17 Jun)
  5. US blockade resumes (14 Jul)

Source: HRANA (Human Rights Activists in Iran Statistics Center) [37]

Observations 1
Total executions fell sharply in the first months of the war

HRANA recorded hundreds of executions a month from November 2025 to February 2026, then its lowest full month in March 2026, when the strikes began (chart). 37

The monthly total recovered after the ceasefire but stayed well below its pre-war level through September. HRANA does not say why it fell.

Political and security-related executions

Executions per month, by month

Executions HRANA documented in each month of its latest reporting year, and the subset on political and security-related charges. October 2025 covers only the last 22 days and October 2026 the first seven. Read as political and security-related executions: Executions per month. 5 dated events are numbered on a strip under the graph and listed below it. Use the Table switch to see every value.

  • Political and security-related
051015Oct 2025Jan 2026AprJulOct02.557.51012.515Oct 2025NovDecJan 2026FebMarAprMayJunJulAugSepOct

Events marked above

  1. Nationwide protests and crackdown

    HRANA's 50-day record runs from 28 December 2025.

    Source: HRANA (Human Rights Activists News Agency) [1]

  2. US and Israeli strikes begin (28 Feb)
  3. Ceasefire (8 Apr)
  4. Memorandum signed (17 Jun)
  5. US blockade resumes (14 Jul)

Source: HRANA (Human Rights Activists in Iran Statistics Center) [37]

Observations 2
Political executions peaked during and just after the war

Executions on political and security charges ran the other way: HRANA's peak months were April and May 2026, with 29 between them (chart). 37

Half the political executions were tied to the January protests

Of the political and security executions HRANA recorded in its latest year, 35 were "in connection with the January 2026 (Dey 1404) protests". 37

About this data

Full published range: 2025-10–2026-10. Every plotted line runs the whole of it – All executions are the bar labels of HRANA's monthly chart, which sum to its total of 2,003. Political and security-related executions are its table "By Month of Execution", which sums to 69.

Economic growth in Iran, 1961–2025

Real GDP growth

Annual change in real GDP. The 2015 nuclear deal's implementation and the US withdrawal are marked under the chart.

% change on previous year, by calendar year

Annual change in real GDP. The 2015 nuclear deal's implementation and the US withdrawal are marked under the chart. Read as real GDP growth: % change on previous year. 2 dated events are numbered on a strip under the graph and listed below it. Use the Table switch to see every value.

  • GDP growth
−20%0%20%1961198020002025−30%−20%−10%0%10%20%30%19611970198019902000201020202025

Events marked above

  1. Nuclear deal implemented
  2. US withdraws from the deal

Source: World Bank [38]

Observations 1
The economy grew in the deal's first year and shrank after the US left

Growth was strongest in 2016, the year the nuclear deal took effect, and turned negative in 2018 and 2019 after the US withdrew (chart). 38 Inflation was at its lowest in decades in 2016 and 2017 and then climbed (next chart). 39

The timing fits sanctions relief and their return, but these series do not separate sanctions from oil prices or other causes.

About this data

Full published range: 1961–2025. Every plotted line runs the whole of it – The World Bank's whole series for Iran (World Development Indicators, updated 8 October 2026). Values are rounded here to one decimal place from the API's unrounded figures.

Consumer price inflation in Iran, 1960–2025

Consumer price inflation

Annual change in consumer prices. The 2015 nuclear deal's implementation and the US withdrawal are marked under the chart.

% change on previous year, by calendar year

Annual change in consumer prices. The 2015 nuclear deal's implementation and the US withdrawal are marked under the chart. Read as consumer price inflation: % change on previous year. 2 dated events are numbered on a strip under the graph and listed below it. Use the Table switch to see every value.

  • Inflation
0%20%40%1960198020002025−10%0%10%20%30%40%50%19601970198019902000201020202025

Events marked above

  1. Nuclear deal implemented
  2. US withdraws from the deal

Source: World Bank [39]

About this data

Full published range: 1960–2025. Every plotted line runs the whole of it – The World Bank's whole series for Iran (World Development Indicators, updated 8 October 2026). Values are rounded here to one decimal place from the API's unrounded figures.

Turnout in parliamentary (Majlis) elections, Iran, 2016, 2020 and 2024

Votes cast as a share of eligible voters, by the Interior Ministry's figures as reported by Al Jazeera.

% of eligible voters

  1. 201662%
  2. 202042%
  3. 202441%

Source: Al Jazeera [24]

Observations 1
Parliamentary turnout also hit a record low in 2024

The March 2024 parliamentary election drew 41 percent, "the lowest participation since Iran's 1979 Islamic Revolution", just below 2020's pandemic-year 42 percent. 24

About this data

Only three elections are shown because the full parliamentary series (IPU Parline) could not be fetched; see Data still needed. The 2016 figure is "about 62 percent".

Deaths in the protests of 28 December 2025 – 15 February 2026, by HRANA's category, as of 23 February 2026

All deaths HRANA had confirmed in the 50-day record, split into its categories. A further 11,744 cases were under review and are not included.

Deaths confirmed by HRANA

  1. Protesters6,488
  2. Children (counted separately)236
  3. Other civilians76
  4. Military and government forces207

Source: HRANA (Human Rights Activists News Agency) [1]; UN Human Rights Council, Independent International Fact-Finding Mission on Iran [4]

Observations 1
HRANA confirmed 7,007 deaths in the January 2026 crackdown, most of them protesters

HRANA's 7,007 counts every confirmed death in its 50-day record, protesters and others (chart). 1

It is a floor: 11,744 more cases were still under review when it was published. 1

The government counted 3,117 dead by late January, including people it called "rioters". 4

The UN mission found the crackdown amounted to "crimes against humanity of murder, imprisonment, torture". 4

About this data

HRANA counts children separately from protesters. The government's own count, 3,117 by 21 January, has no published split beyond 690 "rioters" (UN mission). The UN mission gives no count of its own.

Crackdown deaths, by counter and method

Each count comes from a different counter using a different method, so they cannot be read as one series.

One row per count
CrackdownCounterCountMethodAs of
June 2009No primary count found———
November 2019Amnesty International304 deathsNamed cases, "details released"20 May 2020 [6]
2022–23 (Woman, Life, Freedom)UN fact-finding missionAt least 551 protestersConfirmed minimumEarly 2024 [7]
Dec 2025 – Feb 2026Government (Martyrs Foundation)3,117Official total21 Jan 2026 [2]
Dec 2025 – Feb 2026HRANA4,519 (9,049 under review)Confirmed minimum21 Jan 2026 [2]
Dec 2025 – Feb 2026HRANA6,126 (17,091 under review)Confirmed minimum27 Jan 2026 [3]
Dec 2025 – Feb 2026HRANA7,007 (11,744 under review)Confirmed minimum23 Feb 2026 [1]
Dec 2025 – Feb 2026Published namesHRANA 4,555; government 3,038Named individuals26 Feb 2026 [5]

Sources: HRANA (Human Rights Activists News Agency) [1]; Al Jazeera [2]; Al-Monitor (AFP) [3]; NIAC Insights (National Iranian American Council) [5]; Amnesty International [6]; Freedom House [7]

Observations 3
Each of the last three protest waves was put down with lethal force

Amnesty documented 304 deaths in November 2019, most of them in two days. 6

The UN mission counted at least 551 protesters killed in 2022–23. 7 The January 2026 toll is many times either (table).

There is no verified count for 2009

No primary source for deaths in the 2009 post-election crackdown was found, so it is left blank rather than filled from secondary reports. See Data still needed.

Counts grew as cases were confirmed

HRANA's confirmed total rose by more than half in a month while thousands of cases stayed under review (table). 2 1

Its published list names 4,555 people, against 3,038 on the government's list. 5

Arrests after crackdowns and outside attacks

Arrests counted after the June 2025 war and during the January 2026 crackdown, by counter.

One row per count
PeriodCounterArrestsAs of
13 June – early Sept 2025, after the twelve-day warAmnesty and Human Rights WatchOver 20,0003 Sep 2025 [10]
Same periodIranian police (spokesperson)About 21,00012 Aug 2025 [10]
January 2026 protestsHRANAAt least 41,88027 Jan 2026 [3]
January 2026 protestsUnnamed NGO, cited by the UN missionOver 50,000Mid-Feb 2026 [4]
28 Dec 2025 – 15 Feb 2026HRANA53,77723 Feb 2026 [1]

Sources: HRANA (Human Rights Activists News Agency) [1]; Al-Monitor (AFP) [3]; UN Human Rights Council, Independent International Fact-Finding Mission on Iran [4]; Amnesty International and Human Rights Watch [10]

Observations 2
Repression widened after the June 2025 war

In the three months after the June 2025 war, Amnesty and Human Rights Watch counted over 20,000 arrests, including "dissidents, human rights defenders, journalists" and foreign nationals; the police's own figure was about 21,000. 10 At least nine men were executed on political or espionage charges. 10

The January 2026 crackdown brought more than 50,000 arrests

HRANA counted 53,777 arrests during the crackdown, including hundreds of children and school students. 1

Recorded executions by country, 2025 (Amnesty International)

Executions Amnesty recorded in each of the 17 countries known to have executed people in 2025. These are minimums.

Executions recorded

  1. Iran2,159
  2. Saudi Arabia356
  3. Yemen51
  4. USA47
  5. Egypt23
  6. Kuwait17
  7. Singapore17
  8. Somalia17
  9. Afghanistan6
  10. United Arab Emirates3
  11. Japan1
  12. South Sudan1
  13. Taiwan1

Source: Amnesty International [25]

Observations 2
Iran carried out most of the world's recorded executions in 2025

Amnesty recorded at least 2,159 executions in Iran, 80% of all it recorded worldwide (chart). 25 China is not included: Amnesty believes it executed thousands but cannot count them.

Saudi Arabia, a US partner, was second

Saudi Arabia recorded the next-highest total, and per resident it executed at about two-fifths of Iran's rate (both charts). 25 27 Together the two account for 93% of recorded executions. 25

About this data

From the report's list "Executions recorded globally in 2025". Amnesty gives no figure ("+") for China, Iraq, North Korea and Viet Nam, so they are not charted. It believes China executed thousands. Iran, Saudi Arabia, Somalia and Yemen are marked "+" after their figure, meaning at least that many.

Recorded executions per million residents, 2025

Amnesty's recorded executions in 2025 divided by each country's 2025 population (World Bank).

Executions per million residents

  1. Iran23.36
  2. Saudi Arabia9.63
  3. Kuwait3.49
  4. Singapore2.78
  5. Yemen1.22
  6. Somalia0.86
  7. United Arab Emirates0.26
  8. Egypt0.19
  9. USA0.14
  10. Afghanistan0.14
  11. South Sudan0.08
  12. Japan0.01

Source: Amnesty International [25]; World Bank [27]

About this data

Calculated here: executions (Amnesty) ÷ population (World Bank SP.POP.TOTL, 2025) × one million, to two decimal places. For example, Iran 2,159 ÷ 92,417,681 × one million = 23.36. Taiwan is omitted because the World Bank publishes no population for it; countries without an Amnesty figure are omitted as in the chart above.

Executions in Iran by counter, 2023–2025

IHRNGO and Amnesty International each publish a minimum count for Iran by calendar year. They are separate counts and differ, most of all for 2025.

Executions (minimum)

  1. 2023 — IHRNGO834
  2. 2023 — Amnesty853
  3. 2024 — IHRNGO975
  4. 2024 — Amnesty972
  5. 2025 — IHRNGO1,639
  6. 2025 — Amnesty2,159

Source: Iran Human Rights (IHRNGO) and ECPM [35]; Amnesty International [25]; Amnesty International [26]

Observations 1
Counters agree on the direction but not the 2025 level

IHRNGO and Amnesty were close for 2023 and 2024, but about 500 apart for 2025 (chart). 35 25 Both count only cases they can confirm, so each is a minimum; they are never added together or merged here.

About this data

Only the years for which both counts were read are shown. Amnesty's series runs from 1981 but its earlier Iran figures were not fetched for this report. HRANA's count uses October years and is charted separately above.

Average executions per month under each president, 2005–2025 (IHRNGO)

IHRNGO's average monthly executions for each presidency, from Ahmadinejad (2005–2013) to Pezeshkian's first 17 months (July 2024 – December 2025).

Executions per month

  1. Ahmadinejad (8 years)35
  2. Rouhani (8 years)44
  3. Raisi (33 months)51
  4. Pezeshkian (17 months)135

Source: Iran Human Rights (IHRNGO) and ECPM [35]

Observations 1
The execution rate rose under every recent president

By IHRNGO's count, the average monthly rate rose from Ahmadinejad to Rouhani to Raisi, then more than doubled under Pezeshkian (chart). 35

About this data

From IHRNGO's chart "Average monthly executions per president". IHRNGO's totals per term are 3,337 (Ahmadinejad), 4,249 (Rouhani), 1,714 (Raisi, 33 months) and 2,292 (Pezeshkian, 17 months).

Freedom in the World scores, 195 countries, 2026 edition (covering 2025)

Freedom House's aggregate score out of 100 for every country it rates, lowest first. Iran and Saudi Arabia are highlighted.

Score out of 100

  1. South Sudan0
  2. Sudan1
  3. Turkmenistan1
  4. Eritrea3
  5. North Korea3
  6. Myanmar4
  7. Central African Republic5
  8. Equatorial Guinea5
  9. Tajikistan5
  10. Azerbaijan6
  11. Belarus7
  12. Afghanistan8
  13. Somalia8
  14. China9
  15. Cuba9
  16. Saudi Arabia9
  17. Iran10
  18. Libya10
  19. Syria10
  20. Yemen10
  21. Bahrain12
  22. Russia12
  23. Uzbekistan12
  24. Burundi13
  25. Laos13
  26. Venezuela13
  27. Nicaragua14
  28. Cameroon15
  29. Chad15
  30. Eswatini17
  31. Republic of the Congo17
  32. Democratic Republic of the Congo18
  33. Egypt18
  34. Ethiopia18
  35. United Arab Emirates18
  36. Burkina Faso20
  37. Vietnam20
  38. Mali21
  39. Rwanda21
  40. Cambodia22
  41. Haiti22
  42. Kazakhstan23
  43. Djibouti24
  44. Oman24
  45. Gabon25
  46. Kyrgyzstan25
  47. Qatar25
  48. Zimbabwe25
  49. Brunei27
  50. Niger27
  51. Angola28
  52. Guinea28
  53. Tanzania28
  54. Kuwait30
  55. Algeria31
  56. Iraq31
  57. Pakistan32
  58. Turkey32
  59. Guinea-Bissau33
  60. Thailand33
  61. Uganda33
  62. Jordan34
  63. Morocco37
  64. Togo37
  65. Mauritania38
  66. Comoros41
  67. Lebanon41
  68. Maldives41
  69. El Salvador42
  70. Mozambique42
  71. Tunisia42
  72. Bangladesh44
  73. Nigeria44
  74. Côte d'Ivoire46
  75. Honduras47
  76. Guatemala48
  77. Singapore48
  78. Kenya49
  79. Madagascar50
  80. Georgia51
  81. The Gambia51
  82. Ukraine51
  83. Malaysia53
  84. Serbia53
  85. Zambia53
  86. Armenia54
  87. Bosnia and Herzegovina54
  88. Indonesia56
  89. Mexico58
  90. Philippines58
  91. Nepal59
  92. Moldova60
  93. Benin61
  94. Kosovo61
  95. Papua New Guinea61
  96. Sierra Leone61
  97. India62
  98. Paraguay63
  99. Sri Lanka63
  100. Ecuador64
  101. Hungary65
  102. Liberia65
  103. Peru66
  104. Dominican Republic67
  105. Lesotho67
  106. North Macedonia67
  107. Malawi68
  108. Montenegro68
  109. Albania69
  110. Bhutan69
  111. Bolivia69
  112. Colombia69
  113. Senegal70
  114. Fiji72
  115. Brazil73
  116. Israel73
  117. Namibia73
  118. Timor-Leste73
  119. Bulgaria74
  120. Guyana74
  121. Solomon Islands74
  122. Botswana75
  123. Nauru75
  124. Tonga79
  125. Ghana80
  126. Jamaica81
  127. Seychelles81
  128. South Africa81
  129. Suriname81
  130. United States81
  131. Croatia82
  132. Monaco82
  133. Panama82
  134. Poland82
  135. Vanuatu82
  136. Antigua and Barbuda83
  137. Romania83
  138. South Korea83
  139. Trinidad and Tobago83
  140. Mongolia84
  141. Samoa84
  142. São Tomé and Príncipe84
  143. Argentina85
  144. Greece85
  145. Belize87
  146. Italy87
  147. Mauritius87
  148. Malta88
  149. Slovakia88
  150. France89
  151. Grenada89
  152. Kiribati89
  153. Latvia89
  154. St. Kitts and Nevis89
  155. Cyprus90
  156. Liechtenstein90
  157. Lithuania90
  158. St. Vincent and the Grenadines90
  159. The Bahamas90
  160. Costa Rica91
  161. Spain91
  162. St. Lucia91
  163. Cabo Verde92
  164. Dominica92
  165. Micronesia92
  166. Palau92
  167. United Kingdom92
  168. Andorra93
  169. Marshall Islands93
  170. Taiwan93
  171. Tuvalu93
  172. Australia94
  173. Austria94
  174. Barbados94
  175. Belgium95
  176. Chile95
  177. Czechia95
  178. Germany95
  179. Iceland95
  180. Estonia96
  181. Japan96
  182. Portugal96
  183. Switzerland96
  184. Canada97
  185. Denmark97
  186. Luxembourg97
  187. Netherlands97
  188. San Marino97
  189. Slovenia97
  190. Uruguay97
  191. Ireland98
  192. New Zealand99
  193. Norway99
  194. Sweden99
  195. Finland100

Source: Freedom House [9]; Freedom House [7]; Freedom House [8]

Observations 1
Iran is among the least free countries, alongside Saudi Arabia

Freedom House scores Iran one point above Saudi Arabia, out of 100 (chart). 7 8

Both are rated "Not Free" and are among the 20 lowest-scoring countries it rates. 9

Iran scores higher on political rights than Saudi Arabia, which holds no national elections, and lower on civil liberties. 7 8

About this data

Every country in the "Freedom in the World Score" column of Freedom House's Countries and Territories table. The 12 rated territories (marked with an asterisk there, such as Tibet and Gaza) are left out. Iran scored 11 in the previous edition. Ties are listed alphabetically.

Preferred form of political system, GAMAAN online survey, June 2026

Answers to "Which form of political system do you prefer?" among respondents inside Iran, weighted to literate residents aged 15 and over (fieldwork 20–27 June 2026).

% of respondents

  1. Monarchy, non-federal25.4%
  2. Monarchy, federal8.5%
  3. Republic, non-federal16.6%
  4. Republic, federal10.9%
  5. Islamic Republic13.4%
  6. The form of the alternative doesn't matter6.1%
  7. Lack the knowledge to choose19.1%

Source: GAMAAN (Group for Analyzing and Measuring Attitudes in Iran) [12]

Observations 1
Few respondents prefer the Islamic Republic

In GAMAAN's June 2026 online sample, about 13% chose the Islamic Republic, down about 7 points on the previous year (chart). 12 Monarchy and republic each drew more, and about a quarter had no clear alternative.

About this data

From Figure 17 of the report. The sample was reached online through circumvention tools, mostly Psiphon; GAMAAN gives a credibility interval of ±3 points. The previous wave put the Islamic Republic about 7 points higher.

Views of the war and the regime, GAMAAN online survey, June 2026

Share of respondents inside Iran agreeing with each statement (fieldwork 20–27 June 2026). Each bar is a separate question.

% of respondents

  1. Called the US–Israeli action "military aggression against Iran"42%
  2. Called it "humanitarian intervention"40%
  3. Supported foreign military intervention before and after the war38%
  4. Opposed foreign military intervention before and after the war27%
  5. Felt satisfaction at the weakening of the Islamic Republic during the war60%
  6. Opposed Iran building nuclear weapons59%
  7. Said the US–Iran agreement did not serve Iranians68%
  8. Rated the regime's response to the January protests positively14%

Source: GAMAAN (Group for Analyzing and Measuring Attitudes in Iran) [11]

Observations 2
Respondents split on whether the strikes were aggression

42% in GAMAAN's sample called the US–Israeli action "military aggression against Iran", while about 40% called it "humanitarian intervention" (chart). 11 Most opposed Iran building nuclear weapons.

Most were glad to see the regime weakened

About 60% "felt satisfaction at the weakening of the Islamic Republic during the war", and only about 14% approved of its response to the January protests. 11

About this data

GAMAAN reports most of these as "about" a percentage. The sample was reached online through circumvention tools; see About this data.

Openings and reversals, 2000–2026

Dated moves toward and away from openness in Iran, as the sources report them.

Filled marker: major event Hollow: minor

Showing 9 of 9 events

2000

  1. · Reversal

    Sixteen reformist publications closed in one week under President Khatami

    Source: Committee to Protect Journalists [17]

2004

  1. · Reversal

    3,600 parliamentary candidates rejected, including 83 sitting members; about a thousand reinstated

    Source: The Washington Institute for Near East Policy [18]

2019

  1. · Reversal

    304 protesters killed under President Rouhani

    Source: Amnesty International [6]

2024

  1. · Opening

    Pezeshkian, the field's one moderate, elected

    Source: Al Jazeera [22]

  2. · Opening

    Harsher hijab law shelved by the Supreme National Security Council

    Source: Iran International [13]

2025

  1. · Opening

    Speaker told in writing the hijab law "should not be enacted for the time being"

    Source: Rudaw [14]

  2. · Reversal

    Organisers of a marathon where women ran unveiled arrested

    Source: Freedom House [7]

  3. – · Reversal · major event

    Protest crackdown: 7,007 deaths by HRANA's count

    Source: HRANA (Human Rights Activists News Agency) [1]

2026

  1. · Succession

    Mojtaba Khamenei, the late Leader's son, named Leader

    Source: Iran International [15]

Sources: HRANA (Human Rights Activists News Agency) [1]; Amnesty International [6]; Freedom House [7]; Iran International [13]; Rudaw [14]; Iran International [15]; IFES ElectionGuide [16]; Committee to Protect Journalists [17]; The Washington Institute for Near East Policy [18]; Al Jazeera [22]

Observations 3
The harsher hijab law was shelved, with the Leader's assent

In December 2024 the Supreme National Security Council put the new hijab law "on hold"; its decisions "require the Supreme Leader's signature". 13 In May 2025 the Speaker said he had been told in writing not to enact it. 14

What was halted is the new law's enactment. The existing hijab rules stayed, and Freedom House records arrests in December 2025 over unveiled women at a marathon. 7

Earlier openings were reversed while reformists held the presidency

Under Khatami, hardliners closed sixteen reformist publications in a week in 2000, and in 2004 the Guardian Council purged reformist candidates for parliament (timeline). 17 18 The November 2019 killings came under Rouhani. 6

The new Leader is the old Leader's son

On 8 March 2026 the Assembly of Experts named Mojtaba Khamenei "the third leader", by "the decisive vote of its members", with no tally published. 15 16 Iran International reports he was chosen "under pressure from the Revolutionary Guards"; that is a single outlet's claim. 15

Subtleties

Moderation and repression ran side by side

The 2024 election and the shelved hijab law are the clearest signs of moderation in these sources. In the same period executions rose fastest and the January 2026 crackdown was the deadliest here. A reader who takes only one set of facts gets a one-sided picture.

The war's first months cut both ways

Total executions dropped when the bombing began, while political executions and arrests rose. "The war weakened repression" and "the war hardened it" each use one half of the same HRANA data.

About this data

What this measures. Turnout, candidate vetting, executions, protest deaths, arrests, expert freedom scores and one online survey. Every count of killing or execution is a confirmed minimum by a named counter: IHRNGO, HRANA and Amnesty each use their own method and period, so each has its own chart.

What it does not measure. No source measures how hijab rules are enforced on the street, or how united the regime's security forces are. Executions and deaths in the war itself are in the war's human and financial costs.

How confident to be. Iran does not let independent monitors work, and most executions are unannounced: IHRNGO says under 7% were officially announced in 2025. True numbers are likely higher than every count here.

The survey. GAMAAN reached its sample online, almost all through the Psiphon circumvention tool, and weighted it to literate residents aged 15 and over. Its effective sample size after weighting is about 6,211. 12 People who use such tools may differ from those who do not; no offline survey was found to check this.

How it compares. Amnesty's execution counts and Freedom House's scores cover every country they rate, and both charts show the full set. Turnout and vetting have no comparable cross-country measure here.

Dates. As of late October 2026. Execution counts run to 8 October 2026 (HRANA) and December 2025 (IHRNGO, Amnesty); crackdown counts stop on 23 February 2026; the survey was fielded 20–27 June 2026.

Related Data

The War's Human and Financial Costs, with Earlier Wars for Scale, 2026

Every count puts Iranian deaths in the thousands by early April, though counters disagree on how many were civilians, while US deaths are far below Iraq's and official costs reach tens of billions. [1][2][3][9][11][16][23]

US service members wounded and killed in the Iran war, by month (DCAS), February–October 2026

Wounded in action

Wounded in action, and deaths split into hostile and non-hostile, in each month since the war began, as recorded by the Defense Department's casualty database. Data extracted 28 October 2026; October is a part month.

Service members wounded in the month, by calendar month of the casualty

Wounded in action, and deaths split into hostile and non-hostile, in each month since the war began, as recorded by the Defense Department's casualty database. Data extracted 28 October 2026; October is a part month. Read as wounded in action: Service members wounded in the month. Dashed segments cross 1 definitional break in the source, explained in Method Changes below this graph. 4 dated events are numbered on a strip under the graph and listed below it. Use the Table switch to see every value.

  • Wounded in action
0100200300Apr 2026JulOct050100150200250300350Feb 2026MarAprMayJunJulAugSepOct

Events marked above

  1. Ceasefire
  2. US strikes on Iran resume
  3. US blockade of Iranian ports resumes
  4. President pledges no strikes before the midterms

Vertical dashed lines mark measurement changes. See method changes.

Source: US Department of Defense, Defense Casualty Analysis System [23]

Observations 1
Wounded rose with each round of fighting

Wounded came in two surges, in March and in July, when US strikes resumed (chart). 23 More than half of all the wounded were recorded after the July split into a second category. 8

Few were wounded in the quieter months of May, June and August, and a smaller rise followed in September. 23

Method Changes
2026-07: Casualties split into a second category

"This summer the Pentagon split deaths and injuries in the war into two separate categories: one for Operation Epic Fury and one listed as 'overseas operations,' covering casualties since July." Most casualties from July onward are recorded under Overseas Operations. [23]

Deaths, hostile and non-hostile

Service members who died in the month, by calendar month of the casualty

Wounded in action, and deaths split into hostile and non-hostile, in each month since the war began, as recorded by the Defense Department's casualty database. Data extracted 28 October 2026; October is a part month. Read as deaths, hostile and non-hostile: Service members who died in the month. Dashed segments cross 1 definitional break in the source, explained in Method Changes below this graph. 4 dated events are numbered on a strip under the graph and listed below it. Use the Table switch to see every value.

  • Hostile deaths
  • Non-hostile deaths
0246Apr 2026JulOct01234567Feb 2026MarAprMayJunJulAugSepOct

Events marked above

  1. Ceasefire
  2. US strikes on Iran resume
  3. US blockade of Iranian ports resumes
  4. President pledges no strikes before the midterms

Vertical dashed lines mark measurement changes. See method changes.

Source: US Department of Defense, Defense Casualty Analysis System [23]

Observations 1
Half of the US deaths were not from hostile action

Of the US deaths DCAS records by late October, half were non-hostile, mostly Air Force accidents in March (chart). 23

Reports in early October gave a total of 21; DCAS has since added one more non-hostile death, in October. 8 23

Method Changes
2026-07: Casualties split into a second category

"This summer the Pentagon split deaths and injuries in the war into two separate categories: one for Operation Epic Fury and one listed as 'overseas operations,' covering casualties since July." Most casualties from July onward are recorded under Overseas Operations. [23]

About this data

Full published range: 2026-02–2026-10. Every plotted line runs the whole of it – DCAS publishes monthly tables from February 2026 (Operation Epic Fury) and from June 2026 ("Overseas Operations"). Each value here is the sum of the two categories' published monthly values; months a category does not list count as zero. The deaths add up to the DCAS category totals (15 + 7 = 22) and the wounded to 417 + 448 = 865.

Wounded in action

Sum of the Epic Fury and Overseas Operations monthly "tot_wia" values.

Deaths, hostile and non-hostile

Hostile deaths are the monthly "tot_kia" column (killed in action and died of wounds; it sums to the 7 + 4 hostile deaths in the category tables). Non-hostile deaths are the "tot_acc" column (accidents, illness, undetermined and pending; it sums to the 8 + 3 non-hostile deaths).

Deaths in Iran from the war, by counter, early April 2026 (and the government count to 21 July)

Deaths each counter reports, split into civilians, military, and deaths it does not classify. HRANA to 7 April and Hengaw to 8 April cover the 40 days to the ceasefire; the Iranian authorities' count, relayed by WHO, runs to 21 July and is not split.

Compare by category

Civilian · People killed

  1. HRANA, to 7 April1,701
  2. Hengaw, to 8 April1,030
  3. Iranian authorities via WHO, to 21 July0
Show all breakdowns
Deaths in Iran from the war, by counter, early April 2026 (and the government count to 21 July), by category
CategoryCivilianMilitaryNot classified by the counterTotal
HRANA, to 7 April1,7011,2217143,636
Hengaw, to 8 April1,0306,62007,650
Iranian authorities via WHO, to 21 July003,3753,375

Source: HRANA (Human Rights Activists News Agency) [1]; Hengaw Organization for Human Rights [2]; World Health Organization [3]

Observations 3
At least 1,701 Iranian civilians were killed by early April, by HRANA's minimum count

HRANA counted 1,701 civilians killed by the April ceasefire, including at least 254 children. 1 It counts incident by incident, takes minimums, and warns of undercounting.

By Hengaw's count, most of those killed were military

Hengaw counts 6,620 military personnel killed, mostly Revolutionary Guards and army. Its civilians are 13.5% of its total. 2

Its method is not published, and it also alleges that military units moved into civilian buildings. 2

The counters disagree on the split more than on the scale

All three counts put deaths in the thousands by spring. HRANA's civilians are slightly under half of its total; Hengaw's are about one in seven (chart). 1 2

The government's count has no split at all, so it cannot settle the question. 3

About this data

HRANA publishes the three parts (1,701 civilians, 1,221 military, 714 unclassified) but no total; the 3,636 total and the 46.8% civilian share (1,701 ÷ 3,636) are our arithmetic. Hengaw publishes 7,650 killed, 1,030 civilians (13.5%) and 6,620 military, which add up. The authorities' 3,375 deaths have no civilian–military split, so all of it is shown as not classified. Each counter is a separate bar; none is merged with another. All are minimums or reported counts, not estimates of the true total.

How each count of Iranian deaths works

What each counter covers and how it counts. Only the first two separate civilians, and their counts stop at the April ceasefire.

One row per counter
CounterCoversDeathsCiviliansMethod
HRANA28 Feb – 7 Aprcivilian, military and unclassified listed separately1,701 [1]Incident by incident, minimum values; excludes state-media totals
Hengaw28 Feb – 8 Apr7,650 [2]1,030 [2]Not published
Iranian authorities (via WHO)28 Feb – 21 Jul3,375 [3]Not splitReported by national authorities; WHO does not count
Iranian Red Crescent (via UN mission)28 Feb – 3 Mar787 [7]Not splitSingle statement
Airwars40-day war; June onwardIncidents, not deaths [5]—Tracks and publishes civilian-harm incidents

Sources: HRANA (Human Rights Activists News Agency) [1]; Hengaw Organization for Human Rights [2]; World Health Organization [3]; Airwars [5]; UN Human Rights Council [7]

Observations 2
No count covers the fighting after April except the government's

HRANA's and Hengaw's counts end at the April ceasefire. 1 2 After that, only the authorities' totals and Airwars' incident tallies exist. 3 5

Airwars tracked 267 civilian-harm incidents before the ceasefire and 34 more after strikes resumed in June. 5 WHO notes the authorities have yet to publish cumulative figures. 3

Other reports reuse HRANA's figures

Airwars' one-month report of at least 1,443 civilians killed is HRANA's count, not a separate one. 6

People displaced inside Iran, against its population, as of 21 July 2026

WHO's estimate of people displaced in Iran, and the deaths reported by the Iranian authorities, each shown as a share of Iran's 2025 population (World Bank).

People

  1. Displaced (WHO estimate)3,200,000
  2. Deaths reported by the authorities3,375
  3. Population of Iran, 202592,417,681

Source: World Health Organization [3]; World Bank [4]

Observations 1
WHO estimates 3.2 million people displaced inside Iran

That is about one in every 29 people in Iran (chart). 3 4 WHO calls the figure an estimate and does not say how many have returned home.

About this data

WHO labels its displacement figure an estimate ("All numbers are estimates"). The share is our arithmetic: 3,200,000 ÷ 92,417,681 = 3.5%. The population is the World Bank's 2025 figure (WDI SP.POP.TOTL, last updated 8 October 2026). Population is shown as the 100% reference bar.

Estimates of what the war has cost the US military, by estimator and date, April–October 2026

Each published estimate of the war's cost to the Defense Department, in the order of the date it runs to. Values are in billions of US dollars, not adjusted for inflation.

US$ billions

  1. AEI, to 8 Apr (low end)25
  2. AEI, to 8 Apr (high end)35
  3. Pentagon, testimony 29 Apr25
  4. CSIS, 23 Jun (range 34–42)40
  5. DoD Inspector General, through June33.4
  6. CBO, to 1 Aug38
  7. Pentagon to Congress, to 3 Sep43.6
  8. Hegseth, July projection to end of Sep37.5
  9. Pentagon to Congress, reported by AP 29 Oct47.1

Source: Roll Call [9]; NPR (via KASU) [10]; Congressional Budget Office [11]; Center for Strategic and International Studies [12]; American Enterprise Institute [13]; Associated Press (via WCAX) [22]

Observations 2
Official estimates have risen from $25 billion to over $40 billion

CBO put the cost at about $38 billion by August, and the Pentagon at $43.6 billion by early September (chart). 11 9

AP reports a later Pentagon figure of $47.1 billion, without its as-of date. 22 Most of the Pentagon's September figure is replacing munitions and equipment, not operating costs. 9

More fighting would add $2–3 billion a month, by CBO's estimate

CBO estimates each further month at $2 billion at the low intensity of May and June, and $3 billion at July's level. 11

CBO notes that DoD did not answer its requests for information, so it worked from public reports. 11

About this data

Values are US$ billions (the chart's "count" unit is used because the chart has no dollar unit). AEI published a range ($25–35 bn), shown as its two ends; CSIS's central estimate is shown, with its $34–42 bn range in the label. Roll Call reports CBO's figure as $38.1 bn "through July"; CBO's letter says "approximately $38 billion" as of 1 August. Hegseth's $37.5 bn was a projection to the end of September made in July. AP's $47.1 bn is "the latest estimate the Pentagon has provided to Congress", reported 29 October; AP does not give the date it runs to. Estimators count different things (CBO and DoD include replacing munitions and equipment), so the bars are not one series.

US military deaths: the Iran war (to 28 October 2026) and the Iraq and Afghanistan operations

Total US service member deaths, hostile and non-hostile, in each operation as recorded by the Defense Department.

US service members killed

  1. Iran war, Feb–Oct 202622
  2. Operation New Dawn (Iraq, 2010–11)74
  3. Operation Enduring Freedom (Afghanistan)2,349
  4. Operation Iraqi Freedom (2003–10)4,418

Source: Congressional Research Service [16]; US Department of Defense, Defense Casualty Analysis System [23]

Observations 1
US deaths are a small fraction of the Iraq war's

The Iran war's US deaths are about one two-hundredth of Operation Iraqi Freedom's (chart). 23 16

CBO attributes the war's lower cost to "relatively few U.S. forces" being involved compared with Iraq and Afghanistan. 11 The comparison is of totals: Iraq ran for years, this war for eight months.

About this data

Iran war: DCAS, Operation Epic Fury plus Overseas Operations (15 + 7), extracted 28 October 2026, of which 11 hostile and 11 non-hostile. Earlier operations: CRS RL32492 as of 16 July 2020 (OIF 3,481 hostile and 937 non-hostile). The Iran war has lasted eight months; OIF ran 2003–2010, OEF 2001–2014 and New Dawn 2010–2011, so this compares totals, not rates.

War costs for scale: the Iran war against Iraq and Afghanistan appropriations

The latest Defense Department estimate of the Iran war's cost, beside what Congress appropriated for the Iraq and Afghanistan operations over FY2001–2014. Billions of US dollars, not adjusted for inflation.

US$ billions

  1. Iran war, Pentagon to 3 Sep 202643.6
  2. Iran war, Pentagon as reported 29 Oct 202647.1
  3. Afghanistan and other counterterror (OEF), FY2001–14686
  4. Iraq (OIF and New Dawn), FY2001–14815

Source: Roll Call [9]; Congressional Research Service [17]; Associated Press (via WCAX) [22]

Observations 1
So far the war has cost a small fraction of Iraq's appropriations

The Pentagon's latest figure is about a seventeenth of the $815 billion appropriated for Iraq through FY2014 (chart). 22 17 Iraq's appropriations built up over 13 years.

About this data

Values are US$ billions in the dollars of each year. Iraq is OIF plus New Dawn; Afghanistan is OEF "for Afghanistan and other counterterror operations" (CRS RL33110). The $1.6 trillion often quoted is all post-9/11 operations together, not Iraq alone. The Iran figures are cost estimates; the Iraq and Afghanistan figures are appropriations.

The Iraq war: early cost estimates against what Congress appropriated

The upper end of each total-cost estimate for the Iraq war, with the date it was made, beside the appropriations for Iraq through FY2014. Billions of US dollars.

US$ billions

  1. Daniels (White House budget office), 200260
  2. Lindsey (White House economic adviser), Sep 2002200
  3. Brookings, Aug 2003 (after the invasion)300
  4. Appropriated for Iraq, FY2001–14815

Source: Congressional Research Service [17]; Council on Foreign Relations [18]

Observations 1
Iraq cost far more than the White House forecast

In 2002 the White House budget director put the war at $50–60 billion. 18

Congress appropriated $815 billion for Iraq through FY2014, more than thirteen times the top of that range. 17

Even the high estimate the budget director called "very, very high" was a quarter of the outcome (chart). 18

About this data

Values are US$ billions. Each estimate is shown at its upper end (Daniels $50–60 bn; Lindsey $100–200 bn; Brookings $150–300 bn), which is the most generous reading of the estimates. Brookings' estimate was made in August 2003, five months after the invasion, so it is not a prewar estimate. The CFR task force's March 2003 figure ($20 bn a year "for several years") is a yearly rate, not a total, so it is not charted.

US interceptor stocks, CSIS estimates

CSIS's estimates of US inventories on 27 July 2026, built from budget documents, not Pentagon figures.

Patriot interceptors
fewer than 1,000
27 Jul 2026 [14]
THAAD interceptors
about 250
27 Jul 2026 [14]

Source: Center for Strategic and International Studies [14]

Observations 1
CSIS estimates interceptor stocks have been drawn down

CSIS says the war "required extensive use of interceptors", and that lower stocks "may force" the US and its partners "to take more risks with interceptions". 14

These are CSIS estimates built from budget documents, with deductions for testing and training, not Pentagon figures. 15

About this data

What this measures. Deaths, injuries and displacement in Iran, US military casualties, and estimates of the war's cost to the Defense Department, as of late October 2026. Each figure carries the date it runs to: Iranian independent counts stop in April, costs run to September or later, US casualties to 28 October.

What it does not measure. Deaths in Israel, Iraq, Lebanon and the Gulf states, costs to the wider US economy (see oil, shipping and prices), and Iran's own costs.

US casualty data. DCAS publishes its tables through a JSON interface behind its web app; the series sums its two categories. The July split means a month's casualties appear in one category or the other, so neither category alone is a complete record.

How confident to be. The independent Iranian counts are minimums from organisations working without access to the country. The government count has no split and is relayed by WHO without checking. Cost estimates differ in what they include; none is an audited figure.

Commonly mistaken for. The $1.6 trillion figure for "the Iraq war" is all post-9/11 operations; Iraq's share was $815 billion. 17 The Brookings estimate of $150–300 billion is often called prewar, but was made in August 2003. 18

Iran's Actions Abroad: Proxies, Plots, Hostage-Taking and Attacks, 1979–2026

Courts in Argentina, Belgium and the US have tied Iranian officials to bombings and murder plots, and Iran-aligned militias attacked US forces in a burst in 2023–24, while counts of plots rest on limited sources. [1][3][4][11][13][17]

Confirmed attacks on US and coalition forces in Iraq and Syria by Iran-aligned militias, by month, October 2023 – December 2024

Confirmed attacks on US and coalition forces

Attacks the Washington Institute's Militia Spotlight tracker confirmed and gave a serial number, by month. Claimed attacks on Israel are excluded.

Attacks per month, by month

Attacks the Washington Institute's Militia Spotlight tracker confirmed and gave a serial number, by month. Claimed attacks on Israel are excluded. Read as confirmed attacks on US and coalition forces: Attacks per month. 2 dated events are numbered on a strip under the graph and listed below it. Use the Table switch to see every value.

  • Confirmed attacks (WINEP)
0204060Oct 2023Jan 2024AprJulOct0102030405060Oct 2023DecJan 2024FebMarAprMayJunJulAugSepOctNovDec

Events marked above

  1. Attacks restart after an 18-month pause in Iraq

    The State Department says attacks restarted on 18 October 2023 after "an 18-month general pause in attacks in Iraq and a six-month pause in attacks in Syria".

    Source: US Department of State [9]

  2. Temporary cessation of anti-US attacks

    The tracker describes "the temporary cessation of anti-U.S. attacks in February-July 2024".

    Source: The Washington Institute for Near East Policy (Michael Knights, Amir al-Kaabi and Hamdi Malik, Militia Spotlight) [17]

Source: The Washington Institute for Near East Policy (Michael Knights, Amir al-Kaabi and Hamdi Malik, Militia Spotlight) [17]

Observations 4
Iran-aligned militias attacked US forces more than 200 times before this war

The Washington Institute's tracker confirmed 223 attacks on US and coalition bases in Iraq and Syria between October 2023 and December 2024 (chart). 17

The State Department counted "more than 100" by the end of 2023 alone. 9 These attacks predate the February 2026 war.

The attacks came in a burst and then nearly stopped

About four in five of the confirmed attacks fell in the first four months, to January 2024 (chart). 17 From February to mid-July 2024 the tracker confirmed only a handful, during what it calls a "temporary cessation". Attacks resumed at a lower rate from August.

Before October 2023 there had been a long pause

The State Department says the October 2023 attacks "came after an 18-month general pause in attacks in Iraq and a six-month pause in attacks in Syria" (marked on the chart). 9

The pauses show the militias' attacks start and stop. The sources do not say whether Iran ordered the pauses or the restarts.

The State Department found no sign Iran knew of 7 October in advance

It says "there is no evidence that Iran knew about Hamas's October 7 attacks on Israel in advance", while its support "enabled Hamas to execute the attack". 9

About this data

Full published range: 2023-10–2024-12. Every plotted line runs the whole of it – The tracker's whole run: from 18 October 2023 to its last update on 3 December 2024, so the first and last months are partial. Monthly counts are derived here from the serial numbers, which run in date order from 1 to 223: each month's count is its highest serial minus the previous month's highest. Twenty-one serials have no row on the page; each falls between dated rows in the same month, so the derived months are unaffected.

Houthi materiel inspected by the UN Panel of Experts, by where similar items are developed or operated, 2023–24

Number of inspected items the Panel found strongly similar to materiel developed or operated by each state or group, in its final report of October 2024.

Inspected items

  1. Iran53
  2. Armed groups in Iraq20
  3. Armed groups in Lebanon11
  4. Armed groups in the occupied Palestinian territory5
  5. Armed groups in Bahrain1
  6. Armed groups in Somalia1

Source: UN Security Council, Panel of Experts on Yemen [10]

Observations 2
Most Houthi weapons the UN inspected resemble Iranian materiel

The UN Panel found strong similarities to Iranian materiel in more inspected items than to any other source (chart). It says the Houthis receive "technical assistance, training, weapons and financial support" from Iran, Iraqi armed groups and Hezbollah. 10

The Panel reports resemblance, not proven supply

The finding is that items are "similar" to those Iran develops or operates, not that each was shipped from Iran. 10 Similar items are also operated by armed groups in Iraq and Lebanon.

About this data

Paragraph 70 of S/2024/731. The Panel reports similarity, not proof of supply, and an item can resemble materiel in more than one place, so the bars are not exclusive and do not add to a total. Iran denies supplying the Houthis.

Court findings, convictions and charges, 2011–2026

Court rulings and convictions are shown separately from charges, which are allegations that have not been tested in court.

Filled marker: major event Hollow: minor

Showing 7 of 7 events

2011

  1. · Charge only

    Alleged plot to kill the Saudi ambassador in Washington

    US criminal complaint: two men charged; the outcome was not checked for this report.

    Source: US Department of Justice [7]

2021

  1. · Conviction

    2018 plot to bomb an Iranian opposition rally near Paris

    Belgian court, Antwerp: Iranian diplomat Assadollah Assadi convicted, 20 years.

    Source: BBC News [3]

2024

  1. · Court finding · major event

    1992 Israeli Embassy bombing (29 dead) and 1994 AMIA bombing (85 dead), Buenos Aires

    Argentina, Federal Criminal Cassation Court: attacks were by Hezbollah, "sponsored by the government of Iran"; crimes against humanity.

    Source: Buenos Aires Times [1]

  2. · Charge only

    Alleged tasking of Farhad Shakeri to surveil and plot against President-elect Trump

    US criminal complaint: Shakeri charged; "remains at large and is believed to reside in Iran".

    Source: US Department of Justice [6]

2025

  1. · Conviction · major event

    Plot to kill journalist Masih Alinejad in New York

    US federal court: Rafat Amirov and Polad Omarov sentenced to 25 years each; DOJ says the IRGC offered $500,000.

    Source: US Department of Justice [4]

2026

  1. · Conviction

    Second plot against Alinejad, organised by Farhad Shakeri

    US federal court: Carlisle Rivera sentenced to 15 years.

    Source: US Department of Justice [5]

  2. · Charge only

    AMIA bombing: seven Iranians and a Lebanese charged, including four former officials

    Argentine federal judge (Rafecas): charged as indirect perpetrators; trial in absentia under constitutional challenge.

    Source: TodoJujuy [2]

Sources: Buenos Aires Times [1]; TodoJujuy [2]; BBC News [3]; US Department of Justice [4]; US Department of Justice [5]; US Department of Justice [6]; US Department of Justice [7]

Observations 4
Argentina's highest criminal court held Iran-backed Hezbollah responsible for two bombings

In April 2024 the Cassation Court ruled that both Buenos Aires bombings were carried out by Hezbollah "sponsored by the government of Iran", and blamed then-president Rafsanjani and other officials. 1 Iran denies involvement; no one has been tried in person.

US courts have sentenced men hired to kill a critic of the regime on US soil

Three men have been sentenced for plots against Masih Alinejad that DOJ says were directed by the Iranian government and the IRGC (timeline). 4 5 In Belgium an Iranian diplomat was convicted of plotting to bomb an opposition rally. 3

The US cases here are plots, and the Trump case is only a charge

Every US case on the timeline is a plot or conspiracy; none records a completed killing. 4 5 6 7

The alleged tasking against Donald Trump appears only in a 2024 criminal complaint against a man who remains in Iran. 6

A man charged over the AMIA bombing was later Iran's interior minister

Ahmad Vahidi, former Quds Force chief, is among the officials an Argentine judge charged in September 2026. 2 He was serving as interior minister in March 2024, when he announced that year's election turnout. 16

About this data

Each entry is as of the date shown, except the first Alinejad case, whose status is as of 30 October 2025.

US state sponsors of terrorism, by date designated

The US list as last readable on state.gov, a copy captured on 31 December 2025.

Filled marker: major event Hollow: minor

Showing 4 of 4 events

1979

  1. · Designated

    Syria

    Still listed in the 31 Dec 2025 copy; later status unverified.

    Source: US Department of State [8]

1984

  1. · Designated · major event

    Iran

    Source: US Department of State [8]

2017

  1. · Designated

    North Korea

    Source: US Department of State [8]

2021

  1. · Designated

    Cuba

    Source: US Department of State [8]

Source: US Department of State [8]

Observations 2
Iran has been on the US terrorism-sponsor list since 1984

Iran is the longest-listed state on the list after Syria (timeline). 8 Whether Syria has since been removed could not be checked, because state.gov refused automated requests.

The State Department calls Iran the leading state sponsor

Its 2023 report calls Iran "the leading state sponsor of terrorism". It says Iran gave Hezbollah "hundreds of millions of dollars" and "thousands of rockets, missiles, and small arms" since 2006. 9 This is the US government's own assessment, with no published accounting behind the dollar figure.

Plots abroad attributed to Iran, in one author's dataset

Counts by Matthew Levitt of the Washington Institute, from open sources. He calls the dataset "in no way a comprehensive listing", and target categories overlap, so they do not add to the total.

One row per count
MeasureCountPeriod
Plots in the dataset98 [11]Dec 1979 – Dec 2021
Of which targeted dissidents42 [11]Dec 1979 – Dec 2021
Of which targeted Jews or Israelis31 [11]Dec 1979 – Dec 2021
Plots in the decade 2011–202155 [11]2011–2021
Plots in Europe in the decade after 9/112 [11]2001–2011
Plots in Europe since 201117 [11]2011–2021
Plots in the expanded dataset218 [12]1979 – Oct 2024
Of which in Europe102 [12]1979 – Oct 2024
Plots in Europe, 2021–202454 [12]2021–2024
Of which targeted Iranian dissidents34 [12]2021–2024
Of which used criminal perpetrators16 [12]2021–2024

Sources: Combating Terrorism Center at West Point (Matthew Levitt) [11]; International Centre for Counter-Terrorism (Matthew Levitt and Sarah Boches) [12]

Observations 3
Most recent plots in Europe targeted Iranian dissidents

Of the plots in Europe from 2021 to 2024 in Levitt's dataset, most targeted Iranian dissidents, including Farsi-language journalists (table). 12 Across the whole 1979–2021 dataset, dissidents were the largest single target group, ahead of Jews or Israelis. 11

The pace of plotting has varied, with a lull after 9/11

Levitt finds a gap in Iranian plotting of "about 23 months" after the September 2001 attacks, and very few plots in Europe in the following decade. 11

Plotting then rose: more than half of all his cases fall in 2011–2021 (table). 11

These counts come from one author, and they grow with the dataset

The dataset more than doubled between the 2022 and 2024 publications (table). The 2022 study covered assassination, surveillance and abduction plots; the 2024 map adds intimidation. 11 12

Levitt works at a think tank whose analysts generally favour a hard line on Iran. Neither publication says how many plots were foiled and how many carried out.

MI5's statements on Iran-backed plots in the UK

MI5's own totals, published without a case list or definitions, measuring different things over different years.

potentially lethal Iran-backed plots tracked
more than 20
The year to Oct 2025 [14]
arrests in the UK from Iran-linked operations
more than 50
The twelve months to Oct 2026 [13]

Sources: MI5 (the Security Service) [13]; MI5 (the Security Service) [14]

Observations 3
MI5 reports a rising Iranian threat in the UK, by its own unaudited count

MI5 says it tracked more than twenty potentially lethal Iran-backed plots in the year to October 2025, and that Iran-linked operations led to more than fifty UK arrests in the following twelve months. 14 13 Neither figure comes with cases that can be checked.

MI5 says the IRGC was behind the spring 2026 arson attacks

MI5 says a wave of arson against Jewish communities in the UK and Europe was claimed by a front group, and "behind this front sat members of the IRGC". 13 It also reports "Iranian ambitions to come at harder targets, like military sites". 13

The targets MI5 names are mostly opponents, media and Jewish sites

MI5 describes Iran using "criminal proxies to try to intimidate oppositionists, Iranian media organisations, and Israeli sites". 13 In 2025 fourteen countries jointly condemned "Iran's efforts to kill, kidnap and harass in Europe and North America". 14

The US Secretary of State designated Iran "a state sponsor of wrongful detention" on 27 February 2026, the day before the war.

The Iranian regime must stop taking hostages and release all Americans unjustly detained in Iran, steps that could end this designation and associated actions

Marco Rubio, US Secretary of StateSource: Iran International [15]
Observations 1
The US named Iran a state sponsor of wrongful detention the day before the war

On 27 February 2026 the Secretary of State designated Iran "a state sponsor of wrongful detention", citing "its pattern of hostage-taking and arbitrary detention of Americans". 15

He said releasing detained Americans were "steps that could end this designation". 15 No series of cases by year was found.

About this data

What this measures. Court outcomes, US designations, one tracker of attacks on US forces, one UN weapons inspection and counts of plots from one researcher and from MI5. Each has its own counter, named beside every figure.

What it does not measure. No source counts plots that were foiled against those carried out. Houthi attacks on shipping are not shown because ACLED's counts sit behind a login. The Global Terrorism Database, which could give a longer record, needs registration and was not used.

How confident to be. Court findings and convictions are the firmest evidence here. The State Department reports and MI5 statements are official assessments without published evidence; the Washington Institute and Levitt are independent but hawk-leaning. The militia tracker counts only attacks it could confirm, so it is a floor.

Commonly mistaken for. The militia attacks are often cited as one continuous campaign; the chart shows a four-month burst and a long lull. A charge such as the Shakeri complaint is often reported as if proven.

Dates. As of late October 2026. The attack tracker stops on 3 December 2024; Levitt's counts run to October 2024; MI5's latest statement is 13 October 2026; court outcomes are dated on the timeline.

Outside Attempts to Topple, Coerce or Disarm Hostile Regimes, 1816–2023

Results depend on how success is defined, but imposed regime change was more often followed by civil war than democracy, strikes modestly delayed nuclear programmes, and sanctions or bombing succeeded about a third of the time. [1][3][8][11][13][16]

The 31 states that explored nuclear weapons, by how far they went, 1939–2017

Every state Bleek codes as having at least explored a nuclear weapons programme, by the furthest stage reached and where it stood in 2017. Iran is the one state coded as still pursuing a weapon.

States

  1. Explored, then stopped without launching a programme14
  2. Acquired weapons and kept them9
  3. Launched a programme, stopped without a weapon6
  4. Launched a programme, still pursuing (Iran)1
  5. Acquired weapons, then gave them up (South Africa)1

Source: Belfer Center for Science and International Affairs, Harvard Kennedy School [10]

Observations 6
Ten states built nuclear weapons in about 70 years; most that tried stopped

Of the 31 states Bleek codes as exploring a weapon, ten acquired one, and fourteen stopped before launching a programme. 10 Only South Africa built weapons and then gave them up. 10

Iraq's programme ended after a war and years of intensive inspection

Bleek dates the end of Iraq's pursuit to 1991, when after the Gulf War it was forced to give up its weapons capabilities "and submit to an intensive verification regime". 10 Air strikes alone did not end it: Iraq's pursuit is coded from 1981, after Israel bombed the Osirak reactor. 10

Syria stopped pursuing a weapon after Israel's 2007 strike, but is still coded as exploring

After Israel destroyed the Al-Kibar reactor in 2007, Syria "returned to exploring". Bleek finds no public evidence of a decision either to continue or to stop. 10

Libya gave up its programme in 2003 and accepted inspections

Libya "returned to no activity in 2003", announcing it was abandoning its weapons of mass destruction programmes "and allowing international inspections". 10 Hufbauer and colleagues count Libya as a sanctions success, but "only after 20+ years". 11

Osirak: did the strike delay Iraq or start its bomb programme?

Braut-Hegghammer finds the 1981 strike "triggered a covert nuclear weapons program that did not previously exist", and Bleek follows her in dating Iraq's pursuit from 1981. 9 10

Other datasets disagree: Jo and Gartzke date Iraq's pursuit from 1973, and Bleek grants that the earlier work could "reasonably" be coded as pursuit. 10 Which coding is right decides whether Osirak counts as a strike that started a programme or one that hit a programme already under way.

Bleek codes Iran as pursuing a weapon since 1989, with two alternative codings

Bleek codes Iran's pursuit as open-ended from 1989, but adds that one could "reasonably" code Iran as dropping back to exploration after 2003 or in 2015, when it accepted the nuclear deal's limits. 10

About this data

Bleek's own breakdown: of 31 states that explored, fourteen halted exploration, seven launched programmes but have not acquired weapons, and ten acquired weapons, one of which (South Africa) gave them up. The "kept them" bar is ten minus South Africa; the "stopped" bar is seven minus Iran, whose pursuit Bleek codes as open-ended from 1989. Stopped programmes: Yugoslavia, South Korea, Libya, Brazil, Iraq and Syria (Syria's pursuit ended in 2007 but Bleek still codes it as exploring). Kazakhstan, Ukraine and Belarus, which inherited Soviet weapons, are not in Bleek's table. Coding as of June 2017.

How often sanctions succeed under three definitions (TIES dataset, 1945–2005)

Share of the 1,412 threatened or imposed sanctions cases counted as successes in the TIES dataset, under each of its three definitions of success, for all cases and for the 1,024 cases with a known outcome.

% of cases counted as a success

  1. Strict: target gives in fully or partly (all cases)27.2%
  2. Strict (cases with a known outcome)37.5%
  3. Coders' settlement scores (all cases)32.2%
  4. Coders' settlement scores (known outcome)44%
  5. Relaxed: adds negotiated settlements (all cases)40.8%
  6. Relaxed (known outcome)56%

Source: White Rose Research Online (University of Leeds) [13]

Observations 3
How often sanctions work depends on what counts as success

In the TIES data, the success rate roughly doubles between the strictest count over all cases and the relaxed count over cases with a known outcome. 13 Counting negotiated settlements as success, as the relaxed definition does, means the sender also gave something up. 13

Hufbauer and colleagues count a success when sanctions "contributed significantly" to the goal, and find one in "about one-third" of 204 cases. 11 Pape argued that sanctions must have caused the result, not merely contributed; his stricter count was not read here. 12

Sanctions do worse against enemies and autocrats

Hufbauer and colleagues find sanctions more likely to work when targets are "friendly or democratic countries, rather than enemies, autocrats". 11 For Iran and North Korea they judged "destabilization of either existing regime unlikely", and found "carrots plus sticks" more effective than sticks alone. 11

A newer dataset gives a wider range, without a stated definition

The Global Sanctions Data Base, the largest set here, scores each imposed sanction by its objective, one of which is "regime destabilization". 14 Its authors' 2021 announcement put the success rate at "30 to 50 percent", without saying which outcomes count. 15

About this data

From the authors' Table 1 and text. TIES includes trade disputes (672 of the 1,412 cases are trade-only) and threats that were never carried out (567 cases); the US is the primary sender in a bit over 48% of cases. The table prints the relaxed known-outcome rate as 56.3%; the text says 56%. A slice for security goals against US adversaries alone would need the case file, which was not downloaded.

Air-power coercion attempts, 1917–1999, by outcome

All 53 attempts Horowitz and Reiter identify to coerce a state with air power, counted as a success when the target changed its behaviour as demanded.

Attempts

  1. Succeeded19
  2. Failed34

Source: IDEAS/RePEc [16]; Reason (Ronald Bailey) [17]

Observations 2
About a third of air-power coercion attempts succeeded

Horowitz and Reiter count 19 successes in 53 attempts from 1917 to 1999. 17 Success was likelier when the target's military was vulnerable; how exposed its civilians were made no difference. 16

Demanding a change of leader made bombing less likely to work

"Success is less likely when the attacker demands the target change its leadership." The target's regime type made no difference. 16

About this data

Counts as quoted from the article by Reason; the article itself is paywalled. Reason's summary of the success definition is "when a target changes its behavior as demanded without being attacked".

Studies of outside attempts to change governments, with how each defines success

Three studies of regime change imposed from outside, openly or covertly.

One row per study
StudyCases and yearsWhat counts as success, or the outcome measuredMain finding
Downes, Catastrophic Success (2021)120 imposed regime changes, 1816–2008No success score; outcomes are civil war within ten years, violent removal of the installed leader, later disputes, UN votingCivil war risk "more than doubles"; four and a half times for leadership change [1]
Downes & Monten (2013)70 twentieth-century cases (107 in the dataset, 1816–2003)The target becomes a democracyOnly where development, homogeneity and representative experience were favourable [3] [4]
O'Rourke, Covert Regime Change64 covert US attempts, 1947–89The US-backed side takes power"Unsuccessful more than 60 percent of the time" [5] [6]

Sources: H-Diplo/RJISSF (reviewers' summaries, with page numbers in Downes's book) [1]; Belfer Center for Science and International Affairs, Harvard Kennedy School [3]; H-Diplo/ISSF (review by Mark Peceny) [4]; Boston College News [5]; War on the Rocks [6]

Observations 5
Imposed regime change more than doubles the risk of civil war

In Downes's data a third of imposed regime changes were followed by civil war within a decade. Imposing a new government "more than doubles" the likelihood, and replacing only the leader makes civil war "four and a half times more likely". 1

Nearly half of installed leaders were later forcibly removed, and about two-thirds of those installed by leadership change. 1 One reviewer notes the base rate of civil war is low, so even a doubled risk might look acceptable to an intervener. 1

Restoring an ousted ruler has done best

Downes finds that regime changes restoring a previously ousted ruler "tend to have best outcomes". 1

Regime change has not made targets friendlier

Overall, regime change had no significant effect on later disputes with the intervener, and leadership change more than doubled them. 1 Targets were "no more likely" to vote with the intervener at the UN. 1 Downes and O'Rourke find it "damages relations … more often than it improves them". 2

Democracy has followed only where conditions already favoured it

Downes and Monten find that interveners "will meet with little success" unless the target has "high levels of economic development and societal homogeneity, and previous experience with representative governance". 3 Their data include Iran in 1953 but exclude the Reagan-era covert operations. 4

Most covert US attempts to change governments failed

O'Rourke finds Cold War covert operations "unsuccessful more than 60 percent of the time", with targets more likely to have a civil war within ten years. 5 Most backed authoritarian forces, and the successes came mostly against "democratic governments, weak states, and American allies". 6 7

Kreps and Fuhrmann studied 16 attacks on nuclear facilities, 1942–2007, measuring delay to the target's programme.

There is evidence that the peacetime attacks delayed the target's nuclear program, although the size of this effect is rather modest.

Kreps and FuhrmannAttacking the AtomSource: Belfer Center for Science and International Affairs, Harvard Kennedy School [8]
Observations 2
Strikes on nuclear sites have delayed programmes modestly

Kreps and Fuhrmann find that peacetime strikes delayed programmes, "although the size of this effect is rather modest", and wartime strikes did less well. 8 Their successes came when the attacker struck "well before a nuclear threat was imminent". 8

The same authors say past-success conditions are absent for Iran

Writing in 2011, Kreps and Fuhrmann concluded that "many of the conditions that were conducive to past success are not present in the contemporary Iran case". 8

Studies of pressure on nuclear programmes and of ceasefires

What sanctions, rewards and ceasefire terms have achieved, with how each study defines success.

One row per study
StudyCases and yearsWhat counts as success, or the outcome measuredMain finding
Miller, Stopping the Bomb (2018)22 US sanctions episodes after a programme had startedThe programme stoppedThree of 22; the threat of sanctions deterred others from starting [18]
Mehta, Delaying DoomsdayAll proliferators, plus case studies of India, Iran and North KoreaNuclear reversalThreats plus face-saving rewards, with force "on the table" [19]
Fortna, Peace Time (2004)Ceasefires between states (number not on the page read)Peace lasts"Strong agreements markedly lessen the risk of further war" [24]

Sources: H-Diplo/ISSF [18]; Lawrence Livermore National Laboratory, Center for Global Security Research [19]; Princeton University Press [24]

Observations 3
Sanctions stopped three of 22 programmes already under way, and deterred others from starting

In Miller's data, once a programme had started, US sanctions succeeded "in only three of 22 cases". 18 His reviewer Fuhrmann adds that "we cannot infer much" from those cases alone: counting states deterred from starting a programme gives "a much more sanguine picture". 18

Threats worked when "credible" and when the state was "highly dependent on the United States". 18

Threats plus face-saving rewards make reversal most likely

Mehta finds reversal "most likely" when states face sanctions and are offered "face-saving rewards", especially with force "on the table". The summary read gives no figures. 19

Strong ceasefire agreements last longer

Fortna finds that "strong agreements markedly lessen the risk of further war", naming demilitarised zones, dispute commissions, peacekeeping and outside guarantees. 24

Does backing down cost credibility?

Two answers from the research, reached by different methods.

  • were still taken seriously in the future

    PressCalculating Credibility (2006 per Dartmouth), three 20th-century cases, on leaders who backed downSource: Dartmouth News [20]
  • past action is closely connected to subsequent dispute initiation

    Weisiger & Yarhi-MiloRevisiting Reputation, dispute dataSource: Princeton University [21]

Sources: Dartmouth News [20]; Princeton University [21]

Observations 1
The research on credibility is split

Press expected backing down to hurt credibility and found that leaders who did were "still taken seriously in the future". 20 Weisiger and Yarhi-Milo find that past action is "closely connected" to later challenges, and that judging credibility by current power and interests alone "is misleading". 21

Would an Iranian bomb set off others?

A leader's pledge beside what researchers found about past fears.

Sources: Belfer Center for Science and International Affairs, Harvard Kennedy School [10]; Al Jazeera [22]; Belfer Center for Science and International Affairs, Harvard Kennedy School [23]

Observations 2
Saudi Arabia's crown prince said it would follow an Iranian bomb

In 2018 Mohammed bin Salman said Saudi Arabia did not want a bomb, "but without a doubt, if Iran developed a nuclear bomb, we will follow suit as soon as possible". 22

Past predictions of rapid spread did not come true

Potter and Mukhatzhanova, reviewing the research, describe "past predictions of rapid proliferation" that "failed to materialize". 23 Bleek's record shows ten states with weapons after some 70 years of exploration by 31. 10

The other studies, with how each defines success

A success rate under one definition is not comparable with another.

One row per study
StudyCases and yearsWhat counts as success, or the outcome measuredMain finding
Bleek (2017)31 states, 1939–2017Stage reached: explore, pursue, acquireTen acquired; reversals are dated but their causes are not coded [10]
Hufbauer, Schott, Elliott & Oegg, Economic Sanctions Reconsidered, 3rd edition204 sanctions episodes, WWI–2000Sanctions "contributed significantly" to partial or full success"About one-third" [11]
TIES (Morgan, Bapat & Kobayashi, 2014)1,412 threatened or imposed sanctions, 1945–2005Three definitions (see chart)27.2% to 56% [13]
Global Sanctions Data Base (2024)1,547 imposed sanctions, 1950–2023Per objective: total, partial, negotiated, failure, ongoing"30 to 50 percent" (2021 announcement, definition not stated) [14] [15]
Horowitz & Reiter (2001)53 air-power coercion attempts, 1917–1999Target complies as demanded19 of 53 [16] [17]

Sources: Belfer Center for Science and International Affairs, Harvard Kennedy School [10]; Peterson Institute for International Economics (Hufbauer, Schott, Elliott and Oegg) [11]; White Rose Research Online (University of Leeds) [13]; Austrian Institute of Economic Research (WIFO) [14]; Drexel University LeBow College of Business [15]; IDEAS/RePEc [16]; Reason (Ronald Bailey) [17]

Subtleties

None of these studies measures containment

Every study here measures an attempt to topple, coerce or disarm. No systematic study of holding a hostile state in check over years, with a success rate of its own, was found (see Data still needed).

The datasets were not built on a case like Iran

Downes and Monten expect most regime-change targets to be "poor, diverse countries". 3 Miller's threats worked against states "highly dependent on the United States", which Iran is not. 18 How far the general rates carry over to Iran is a judgement, not something these data settle.

About this data

What is measured. Each study counts a different kind of attempt (imposed regime change, covert operations, strikes on nuclear sites, sanctions, air coercion) over a different period, with its own definition of success. The tables above keep each figure next to its definition.

Why there is no time series. The studies publish pooled results over long periods, not rates by year.

How the figures were read. Several books and articles are paywalled. Their figures are taken from abstracts, publishers' summaries and named reviewers, each labelled in the Sources. Downes's figures are reviewers' summaries with page numbers in his book.

What this is commonly mistaken for. A success rate under one definition is not comparable with another's. A third of sanctions cases "succeeding" under a contributed-to test is not a third succeeding because of sanctions.

Data still needed

  • Turnout in every parliamentary (Majlis) election since 1980, from one source (IPU Parline)Only three parliamentary elections are shown. A full series would show whether the 2020 and 2024 lows break with the past as clearly as the presidential ones do.
  • A primary-source death count for the June 2009 post-election crackdownWithout it the 2009 crackdown cannot be set beside 2019, 2022 and 2026, so whether killing in crackdowns has grown over time rests on three events.
  • Preference for the Islamic Republic in every GAMAAN wave since 2019, and an offline or telephone survey asking the same questionOne previous wave is known (about 20%). An independent, non-online measure would show whether the online sample overstates opposition, which decides how far the 13% can carry an argument about consent.
  • Street enforcement of hijab rules (warnings, arrests, closures) by month since 2024The sources show the harsher law was not enacted, not whether enforcement of the existing rules eased. That is the difference between a narrow and a broad sign of moderation.
  • Defections, resignations or splits within the security forces and clergy since February 2026Whether outside attacks weakened or rallied the regime turns on cohesion as well as on repression counts; no dataset was found.
  • Amnesty International's recorded executions in Iran for every year since 1981Only 2023–2025 were read, so Amnesty's long-run Iran series cannot be set beside IHRNGO's 2008–2025 series.
  • Deaths per protest in comparable crackdowns in other countries, by the same counting methodWithout a comparator, the scale of the January 2026 toll can be judged only against Iran's own earlier crackdowns.
Sources

Iran's Government and Its People: Elections, Opinion and Repression, 1980–2026

  1. The Crimson Winter: A 50 Day Record of Iran’s 2025–2026 Nationwide Protests

    HRANA (Human Rights Activists News Agency), 2026-02-23 · supports

    “This report adopts a disciplined human rights methodology centered on documenting minimum verifiable cases rather than publishing maximal estimates. ... • Protesters killed: 6,488 • Children killed, counted separately and not included among protesters: 236 • Civilians killed, non-protester: 76 • Military and government forces killed: 207 • Total fatalities: 7,007 An additional 11,744 cases remain under review and are not included in confirmed totals. ... • Total arrests: 53,777 • Children, teenagers, and school students arrested: 555 • University students arrested: 147”Hide quote
    This report adopts a disciplined human rights methodology centered on documenting minimum verifiable cases rather than publishing maximal estimates. ... • Protesters killed: 6,488 • Children killed, counted separately and not included among protesters: 236 • Civilians killed, non-protester: 76 • Military and government forces killed: 207 • Total fatalities: 7,007 An additional 11,744 cases remain under review and are not included in confirmed totals. ... • Total arrests: 53,777 • Children, teenagers, and school students arrested: 555 • University students arrested: 147
  2. At least 3,117 people killed during Iran protests, state media report

    Al Jazeera, 2026-01-21 · supports

    “Iranian state television has released the first official death toll from the recent antigovernment protests that engulfed the country, reporting that 3,117 people were killed during the crackdown. ... The US-based Human Rights Activists News Agency (HRANA) has said 4,519 were killed during the wave of demonstrations, including 4,251 protesters, 197 security personnel, 35 people aged under 18 and 38 bystanders who it says were neither protesters nor security personnel. ... HRANA also said 9,049 additional deaths were under review.”Hide quote
    Iranian state television has released the first official death toll from the recent antigovernment protests that engulfed the country, reporting that 3,117 people were killed during the crackdown. ... The US-based Human Rights Activists News Agency (HRANA) has said 4,519 were killed during the wave of demonstrations, including 4,251 protesters, 197 security personnel, 35 people aged under 18 and 38 bystanders who it says were neither protesters nor security personnel. ... HRANA also said 9,049 additional deaths were under review.
  3. Rights group says confirmed Iran protest toll over 6,000

    Al-Monitor (AFP), 2026-01-27 · supports

    “The US-based Human Rights Activists News Agency (HRANA) said it had confirmed that 6,126 people had been killed, including 5,777 protesters, 86 minors, 214 members of the security forces and 49 bystanders. But the group, which has an extensive network of sources inside Iran and has tracked the protests on a daily basis since they began, added it was still investigating another 17,091 possible fatalities. ... At least 41,880 people have been arrested, it said.”Hide quote
    The US-based Human Rights Activists News Agency (HRANA) said it had confirmed that 6,126 people had been killed, including 5,777 protesters, 86 minors, 214 members of the security forces and 49 bystanders. But the group, which has an extensive network of sources inside Iran and has tracked the protests on a daily basis since they began, added it was still investigating another 17,091 possible fatalities. ... At least 41,880 people have been arrested, it said.
  4. Report of the Independent International Fact-Finding Mission on the Islamic Republic of Iran (A/HRC/61/60)

    UN Human Rights Council, Independent International Fact-Finding Mission on Iran, 2026-03-19 · supports

    “On 21 January, the Foundation of Martyrs and Veterans Affairs announced that 3,117 individuals had been killed, including members of the security forces, and 690 'rioters'. At the time of writing the present report, one credible human rights organization had estimated that over 7,000 people, including up to 6,500 protesters, over 230 children and at least 200 members of the security forces had been killed. ... [conditions] have made it difficult for the Mission to arrive at precise estimates at the time of writing of the number of people killed and injured. ... A credible human rights organization estimated that by mid-February, over 50,000 people had been arrested ... credible human rights organizations recording at least 464 executions between July and September. A further 222 people were executed in October alone – the highest monthly total recorded in at least 25 years. ... amount to the crimes against humanity of murder, imprisonment, torture”Hide quote
    On 21 January, the Foundation of Martyrs and Veterans Affairs announced that 3,117 individuals had been killed, including members of the security forces, and 690 'rioters'. At the time of writing the present report, one credible human rights organization had estimated that over 7,000 people, including up to 6,500 protesters, over 230 children and at least 200 members of the security forces had been killed. ... [conditions] have made it difficult for the Mission to arrive at precise estimates at the time of writing of the number of people killed and injured. ... A credible human rights organization estimated that by mid-February, over 50,000 people had been arrested ... credible human rights organizations recording at least 464 executions between July and September. A further 222 people were executed in October alone – the highest monthly total recorded in at least 25 years. ... amount to the crimes against humanity of murder, imprisonment, torture
  5. A Name-Based Reckoning: Documented Fatalities and State Responsibility in Iran's 1404 Uprising

    NIAC Insights (National Iranian American Council), 2026-02-26 · supports

    “While HRANA notes that its broader documentation framework records 7,007 fatalities during this period, the report's most concrete and publicly verifiable contribution lies in the publication of 4,555 named individuals who were killed during the uprising. ... Initially, 2,986 names were released, with the remaining cases listed as unspecified. In a subsequent update, the number of published names rose to 3,038.”Hide quote
    While HRANA notes that its broader documentation framework records 7,007 fatalities during this period, the report's most concrete and publicly verifiable contribution lies in the publication of 4,555 named individuals who were killed during the uprising. ... Initially, 2,986 names were released, with the remaining cases listed as unspecified. In a subsequent update, the number of published names rose to 3,038.
  6. Iran: Details released of 304 deaths during protests six months after security forces’ killing spree

    Amnesty International, 2020-05-20 · supports

    “Amnesty International has released details of the deaths of 304 men, women and children killed by Iran's security forces during last November's ruthless crackdown ... more than 220 of the recorded deaths took place over just two days on 16 and 17 November.”Hide quote
    Amnesty International has released details of the deaths of 304 men, women and children killed by Iran's security forces during last November's ruthless crackdown ... more than 220 of the recorded deaths took place over just two days on 16 and 17 November.
  7. Freedom in the World 2026: Iran

    Freedom House, 2026 · supports

    “Freedom in the World 2026 Iran Not Free 10 100 PR Political Rights 4 40 CL Civil Liberties 6 60 Last Year's Score & Status 11 100 Not Free ... Authorities responded harshly to the Woman, Life, Freedom movement, which began in 2022 ... In early 2024, a United Nations fact-finding mission reported that at least 551 protesters had been killed. ... In 2023, the parliament approved a bill that would impose heavier penalties, including steeper fines and longer prison terms, on women who do not wear the hijab. Implementation was scheduled to begin in December 2024, but it was paused by the Pezeshkian administration and remained pending during 2025. Widespread defiance of the hijab mandate continued, and in December 2025 authorities arrested the organizers of a marathon on Kish Island in which many women competed without a headscarf.”Hide quote
    Freedom in the World 2026 Iran Not Free 10 100 PR Political Rights 4 40 CL Civil Liberties 6 60 Last Year's Score & Status 11 100 Not Free ... Authorities responded harshly to the Woman, Life, Freedom movement, which began in 2022 ... In early 2024, a United Nations fact-finding mission reported that at least 551 protesters had been killed. ... In 2023, the parliament approved a bill that would impose heavier penalties, including steeper fines and longer prison terms, on women who do not wear the hijab. Implementation was scheduled to begin in December 2024, but it was paused by the Pezeshkian administration and remained pending during 2025. Widespread defiance of the hijab mandate continued, and in December 2025 authorities arrested the organizers of a marathon on Kish Island in which many women competed without a headscarf.
  8. Freedom in the World 2026: Saudi Arabia

    Freedom House, 2026 · complicates

    “Freedom in the World 2026 Saudi Arabia Not Free 9 100 PR Political Rights 1 40 CL Civil Liberties 8 60 Last Year's Score & Status 9 100 Not Free”Hide quote
    Freedom in the World 2026 Saudi Arabia Not Free 9 100 PR Political Rights 1 40 CL Civil Liberties 8 60 Last Year's Score & Status 9 100 Not Free
  9. Countries and Territories (Freedom in the World scores)

    Freedom House, 2026 · complicates

    “Freedom House rates people’s access to political rights and civil liberties in 208 countries and territories through its annual Freedom in the World report. ... Country or Territory | Freedom in the World Score | Political Rights | Civil Liberties ... Iran | 10/100 Not Free | 4 | 6 ... Saudi Arabia | 9/100 Not Free”Hide quote
    Freedom House rates people’s access to political rights and civil liberties in 208 countries and territories through its annual Freedom in the World report. ... Country or Territory | Freedom in the World Score | Political Rights | Civil Liberties ... Iran | 10/100 Not Free | 4 | 6 ... Saudi Arabia | 9/100 Not Free
  10. Iran: Authorities unleash wave of oppression after hostilities with Israel

    Amnesty International and Human Rights Watch, 2025-09-03 · complicates

    “Since 13 June, Iranian authorities have arrested over 20,000 people, including dissidents, human rights defenders, journalists, social media users, families of victims unlawfully killed in nationwide protests and foreign nationals. ... In an 12 August statement, Saeed Montazer Al-Mahdi, spokesperson for the police, announced that about 21,000 people had been arrested. ... At least nine men have been executed on politically motivated charges and/or accusations of espionage for Israel”Hide quote
    Since 13 June, Iranian authorities have arrested over 20,000 people, including dissidents, human rights defenders, journalists, social media users, families of victims unlawfully killed in nationwide protests and foreign nationals. ... In an 12 August statement, Saeed Montazer Al-Mahdi, spokesperson for the police, announced that about 21,000 people had been arrested. ... At least nine men have been executed on politically motivated charges and/or accusations of espionage for Israel
  11. Iranians’ Attitudes Toward the 2026 Protests and War

    GAMAAN (Group for Analyzing and Measuring Attitudes in Iran), 2026-07-27 · supports

    “The findings in this report are based on a weighted sample of 31,450 respondents inside Iran. ... 42% considered the U.S. and Israeli military action to be 'military aggression against Iran,' while nearly the same share disagreed ... About 40% viewed the U.S. and Israeli military operation as a form of 'humanitarian intervention' (R2P), while about 48% disagreed ... about 38% of society reported that they had supported military intervention both before and after the 39-day war. By contrast, about 27% said they had opposed military intervention both before and after the war. ... about 60% felt satisfaction at the weakening of the Islamic Republic during the war ... about 59% opposed Iran building nuclear weapons ... about 47% did not consider closing the Strait of Hormuz to be the right action ... about 68% of society believes that the agreement did not serve the interests of the Iranian people ... Only about 14% had a positive assessment of the regime's response”Hide quote
    The findings in this report are based on a weighted sample of 31,450 respondents inside Iran. ... 42% considered the U.S. and Israeli military action to be 'military aggression against Iran,' while nearly the same share disagreed ... About 40% viewed the U.S. and Israeli military operation as a form of 'humanitarian intervention' (R2P), while about 48% disagreed ... about 38% of society reported that they had supported military intervention both before and after the 39-day war. By contrast, about 27% said they had opposed military intervention both before and after the war. ... about 60% felt satisfaction at the weakening of the Islamic Republic during the war ... about 59% opposed Iran building nuclear weapons ... about 47% did not consider closing the Strait of Hormuz to be the right action ... about 68% of society believes that the agreement did not serve the interests of the Iranian people ... Only about 14% had a positive assessment of the regime's response
  12. Iranians’ Attitudes Toward the 2026 Protests and 39-Day War: Survey Report (Figure 17 and methodology)

    GAMAAN (Group for Analyzing and Measuring Attitudes in Iran), 2026-07 · supports

    “Which form of political system do you prefer? ... Republic non-federal 16.6% federal 10.9% ... Monarchy non-federal 25.4% federal 8.5% ... Islamic Republic (I.R.) %13.4 ... The form of the alternative to the I.R. doesn't matter to me %6.1 ... I lack the knowledge to choose an alternative to the I.R. %19.1 ... about 13% chose the “Islamic Republic,” indicating a decline of about 7 percentage points compared with last year. ... After weighting, the effective sample size is approximately 6,211. ... the survey reports an approximate 95% credibility level with a conservative credibility interval of ±3 percentage points. ... about 97% received the survey link through Psiphon”Hide quote
    Which form of political system do you prefer? ... Republic non-federal 16.6% federal 10.9% ... Monarchy non-federal 25.4% federal 8.5% ... Islamic Republic (I.R.) %13.4 ... The form of the alternative to the I.R. doesn't matter to me %6.1 ... I lack the knowledge to choose an alternative to the I.R. %19.1 ... about 13% chose the “Islamic Republic,” indicating a decline of about 7 percentage points compared with last year. ... After weighting, the effective sample size is approximately 6,211. ... the survey reports an approximate 95% credibility level with a conservative credibility interval of ±3 percentage points. ... about 97% received the survey link through Psiphon
  13. Has Khamenei backtracked from strict hijab enforcement?

    Iran International, 2024-12-19 · supports

    “Iran's Supreme National Security (SNSC) may have shelved the controversial new hijab law, some lawmakers and the media outlets in Tehran say, most likely with the consent of Supreme Leader Ali Khamenei. ... several lawmakers, including Deputy Speaker Ali Nikzad, have confirmed that the Supreme National Security Council (SNSC) has decided to put the hijab law on hold for now ... The President heads the Security Council, but all its decisions require the Supreme Leader’s signature to come into effect.”Hide quote
    Iran's Supreme National Security (SNSC) may have shelved the controversial new hijab law, some lawmakers and the media outlets in Tehran say, most likely with the consent of Supreme Leader Ali Khamenei. ... several lawmakers, including Deputy Speaker Ali Nikzad, have confirmed that the Supreme National Security Council (SNSC) has decided to put the hijab law on hold for now ... The President heads the Security Council, but all its decisions require the Supreme Leader’s signature to come into effect.
  14. Iran’s security council halts implementation of new hijab bill: Parliament speaker

    Rudaw, 2025-05-25 · supports

    “Ghalibaf told lawmakers during a tense parliamentary session that the SNSC 'has notified the parliament in writing that this [Chastity and Hijab] law should not be enacted for the time being,' adding, 'In this case, I cannot enact the law.' The law ... was finalized and published on November 30, 2024. ... An unjust law will not be enforced, and if it is, it will create discontent.”Hide quote
    Ghalibaf told lawmakers during a tense parliamentary session that the SNSC 'has notified the parliament in writing that this [Chastity and Hijab] law should not be enacted for the time being,' adding, 'In this case, I cannot enact the law.' The law ... was finalized and published on November 30, 2024. ... An unjust law will not be enforced, and if it is, it will create discontent.
  15. Iran announces Khamenei’s son Mojtaba as country's new supreme leader

    Iran International, 2026-03-08 · supports

    “Iran's Assembly of Experts announced in a statement on Sunday that Mojtaba Khamenei has been chosen as the country's new supreme leader, days after Iran International first reported on Tuesday that the Assembly of Experts had selected him under pressure from the Revolutionary Guards. ... “In today’s extraordinary session, the Assembly of Experts, by the decisive vote of its members, selected and introduced Ayatollah Seyed Mojtaba Hosseini Khamenei as the third leader of the sacred system of the Islamic Republic of Iran,” the body said in a statement.”Hide quote
    Iran's Assembly of Experts announced in a statement on Sunday that Mojtaba Khamenei has been chosen as the country's new supreme leader, days after Iran International first reported on Tuesday that the Assembly of Experts had selected him under pressure from the Revolutionary Guards. ... “In today’s extraordinary session, the Assembly of Experts, by the decisive vote of its members, selected and introduced Ayatollah Seyed Mojtaba Hosseini Khamenei as the third leader of the sacred system of the Islamic Republic of Iran,” the body said in a statement.
  16. Country Profile: Iran, Islamic Republic of

    IFES ElectionGuide, 2026 · supports

    “Chief of State: Leader of the Islamic Revolution Ayatollah Mojtaba KHAMENEI (since 8 March 2026) ... 2013-06-14 ... Turnout 72.71”Hide quote
    Chief of State: Leader of the Islamic Revolution Ayatollah Mojtaba KHAMENEI (since 8 March 2026) ... 2013-06-14 ... Turnout 72.71
  17. Three more pro-reform papers shut down

    Committee to Protect Journalists, 2000-04-27 · complicates

    “New York, April 27, 2000 — Hard-line political forces continued their crackdown on Iran's reformist press by closing three more newspapers, bringing to 16 the total number of publications shut down in the last week. ... which is directed by President Muhammad Khatami's brother”Hide quote
    New York, April 27, 2000 — Hard-line political forces continued their crackdown on Iran's reformist press by closing three more newspapers, bringing to 16 the total number of publications shut down in the last week. ... which is directed by President Muhammad Khatami's brother
  18. Iran's Parliamentary Elections: Inside the Candidate Approval Process

    The Washington Institute for Near East Policy, 2016-01-22 · supports

    “In January 2004, it rejected 3,600 out of 8,157 candidates for Majlis, including 83 sitting members. Ultimately, around a thousand of these were reinstated after one-third of the Majlis resigned in protest.”Hide quote
    In January 2004, it rejected 3,600 out of 8,157 candidates for Majlis, including 83 sitting members. Ultimately, around a thousand of these were reinstated after one-third of the Majlis resigned in protest.
  19. Many Incumbent And Ex-Lawmakers Barred From Running In Iran Election

    Iran International, 2024-01-07 · supports

    “A report on the Etemad Online website said that out of the 290 lawmakers, 275 had registered their candidacy for the upcoming elections but the qualifications of only 26 have been rejected.”Hide quote
    A report on the Etemad Online website said that out of the 290 lawmakers, 275 had registered their candidacy for the upcoming elections but the qualifications of only 26 have been rejected.
  20. Iran’s election: By the numbers

    Al Jazeera, 2021-06-18 · supports

    “• Seven presidential candidates approved by Iran’s Guardian Council to run out of 592 who registered, with three later dropping out • Zero women out of the 40 who registered approved to run for the presidency ... • 73 percent turnout in Iran’s last presidential election in 2017”Hide quote
    • Seven presidential candidates approved by Iran’s Guardian Council to run out of 592 who registered, with three later dropping out • Zero women out of the 40 who registered approved to run for the presidency ... • 73 percent turnout in Iran’s last presidential election in 2017
  21. Iran heads to presidential run-off on July 5 amid record low turnout

    Al Jazeera, 2024-06-29 · supports

    “Only 40 percent of more than 61 million eligible Iranians voted, the Ministry of Interior said on Saturday, a new low in presidential elections since the country’s 1979 revolution. ... The lowest presidential turnout in the more than four-decade history of the Islamic republic was the one that got Raisi into office, with 48.8 percent.”Hide quote
    Only 40 percent of more than 61 million eligible Iranians voted, the Ministry of Interior said on Saturday, a new low in presidential elections since the country’s 1979 revolution. ... The lowest presidential turnout in the more than four-decade history of the Islamic republic was the one that got Raisi into office, with 48.8 percent.
  22. Centrist Masoud Pezeshkian will be Iran’s next president

    Al Jazeera, 2024-07-06 · supports

    “Pezeshkian acknowledges ‘difficult path ahead’ after winning run-off election with 53.7 percent of the vote ... Participation in the run-off was 49.8 percent in the tight race between Pezeshkian, the sole moderate in an original field of four candidates who has pledged to open Iran to the world, and the former nuclear negotiator Jalili”Hide quote
    Pezeshkian acknowledges ‘difficult path ahead’ after winning run-off election with 53.7 percent of the vote ... Participation in the run-off was 49.8 percent in the tight race between Pezeshkian, the sole moderate in an original field of four candidates who has pledged to open Iran to the world, and the former nuclear negotiator Jalili
  23. Disqualified Presidential Candidates in Iran Lodge Protests

    Iran International, 2024-06-10 · supports

    “The Guardian Council, which vets candidates, approved only six out of more than 80 who registered to run. Key figures, including former parliament speaker Ali Larijani and former president Mahmoud Ahmadinejad, were disqualified.”Hide quote
    The Guardian Council, which vets candidates, approved only six out of more than 80 who registered to run. Key figures, including former parliament speaker Ali Larijani and former president Mahmoud Ahmadinejad, were disqualified.
  24. Low turnout as conservatives dominate Iran parliamentary election

    Al Jazeera, 2024-03-04 · supports

    “The country saw a voter turnout of 41 percent in Friday’s elections for the national legislature and Assembly of Experts, the lowest participation since Iran’s 1979 Islamic Revolution ... “Around 25 million people participated with a turnout of 41 percent,” Interior Minister Ahmad Vahidi said ... The lowest previous turnout was in the parliamentary elections in 2020, which saw a 42 percent turnout during the COVID-19 pandemic. About 62 percent of voters participated in 2016.”Hide quote
    The country saw a voter turnout of 41 percent in Friday’s elections for the national legislature and Assembly of Experts, the lowest participation since Iran’s 1979 Islamic Revolution ... “Around 25 million people participated with a turnout of 41 percent,” Interior Minister Ahmad Vahidi said ... The lowest previous turnout was in the parliamentary elections in 2020, which saw a 42 percent turnout during the COVID-19 pandemic. About 62 percent of voters participated in 2016.
  25. Death Sentences and Executions 2025 (ACT 50/0778/2026)

    Amnesty International, 2026-05 · supports

    “Amnesty International recorded 2,707 executions in 2025, an increase by 78% from the 1,518 known executions in 2024. It is the highest figure recorded by Amnesty International since 1981 ... a spike in executions in Iran, where the country total reached at least 2,159, more than doubling the 2024 figure of at least 972; and accounting for 80% of all recorded executions. ... The known totals do not include the thousands of people believed to have been executed in China ... EXECUTIONS RECORDED GLOBALLY IN 2025 Afghanistan (6), China (+), Egypt (23), Iran ( 2,159+), Iraq (+), Japan (1), Kuwait (17), North Korea (+), Saudi Arabia (356+), Singapore (17), Somalia (17+), South Sudan (1), Taiwan (1), United Arab Emirates (UAE, 3), USA (47), Viet Nam (+), Yemen (51+). ... The executions known to have been carried out in Iran and Saudi Arabia accounted for 93% of the total.”Hide quote
    Amnesty International recorded 2,707 executions in 2025, an increase by 78% from the 1,518 known executions in 2024. It is the highest figure recorded by Amnesty International since 1981 ... a spike in executions in Iran, where the country total reached at least 2,159, more than doubling the 2024 figure of at least 972; and accounting for 80% of all recorded executions. ... The known totals do not include the thousands of people believed to have been executed in China ... EXECUTIONS RECORDED GLOBALLY IN 2025 Afghanistan (6), China (+), Egypt (23), Iran ( 2,159+), Iraq (+), Japan (1), Kuwait (17), North Korea (+), Saudi Arabia (356+), Singapore (17), Somalia (17+), South Sudan (1), Taiwan (1), United Arab Emirates (UAE, 3), USA (47), Viet Nam (+), Yemen (51+). ... The executions known to have been carried out in Iran and Saudi Arabia accounted for 93% of the total.
  26. Global: Recorded executions hit their highest figure since 2015

    Amnesty International, 2025-04-08 · supports

    “Iran executed 119 more individuals than last year (from at least 853 to at least 972) – accounting for 64% of all known executions.”Hide quote
    Iran executed 119 more individuals than last year (from at least 853 to at least 972) – accounting for 64% of all known executions.
  27. World Development Indicators: Population, total (SP.POP.TOTL), API

    World Bank, 2026-10-08 · supports

    “"indicator":{"id":"SP.POP.TOTL","value":"Population, total"} ... "lastupdated":"2026-10-08" ... Iran, Islamic Rep. 2025 92417681 ... Saudi Arabia 2025 36973555 ... Kuwait 2025 4865298 ... Singapore 2025 6111175 ... Yemen, Rep. 2025 41773878 ... Somalia, Fed. Rep. 2025 19654739 ... United Arab Emirates 2025 11513149 ... Egypt, Arab Rep. 2025 118365995 ... United States 2025 341784857 ... Afghanistan 2025 43844111 ... South Sudan 2025 12188788 ... Japan 2025 123366734”Hide quote
    "indicator":{"id":"SP.POP.TOTL","value":"Population, total"} ... "lastupdated":"2026-10-08" ... Iran, Islamic Rep. 2025 92417681 ... Saudi Arabia 2025 36973555 ... Kuwait 2025 4865298 ... Singapore 2025 6111175 ... Yemen, Rep. 2025 41773878 ... Somalia, Fed. Rep. 2025 19654739 ... United Arab Emirates 2025 11513149 ... Egypt, Arab Rep. 2025 118365995 ... United States 2025 341784857 ... Afghanistan 2025 43844111 ... South Sudan 2025 12188788 ... Japan 2025 123366734
  28. IAEA Director General report on Iran, GOV/2026/50

    International Atomic Energy Agency, 2026-09-01 · supports

    “On 28 February 2026, the United States of America and Israel launched further military attacks on Iran, including on the sites of some nuclear facilities. Consequently, the Agency stopped conducting verification activities in Iran.”Hide quote
    On 28 February 2026, the United States of America and Israel launched further military attacks on Iran, including on the sites of some nuclear facilities. Consequently, the Agency stopped conducting verification activities in Iran.
  29. Iran Update Special Report, July 13, 2026

    Institute for the Study of War and AEI's Critical Threats Project, 2026-07-13 · supports

    “Iran has continuously made efforts to reconstitute its ballistic missile and drone programs since the ceasefire on April 8. ... The United States will resume its blockade of Iranian ports beginning on July 14 at 4:00 PM ET.”Hide quote
    Iran has continuously made efforts to reconstitute its ballistic missile and drone programs since the ceasefire on April 8. ... The United States will resume its blockade of Iranian ports beginning on July 14 at 4:00 PM ET.
  30. Report consistent with the War Powers Resolution (House Document 119-167)

    US House of Representatives (letter from the President), 2026-06-29 · supports

    “These efforts led to my signing a Memorandum of Understanding (MOU) with the Government of the Islamic Republic of Iran on June 17, 2026.”Hide quote
    These efforts led to my signing a Memorandum of Understanding (MOU) with the Government of the Islamic Republic of Iran on June 17, 2026.
  31. The Joint Comprehensive Plan of Action (JCPOA) at a Glance

    Arms Control Association, 2025-02 · supports

    “January 16, 2016, Implementation Day”Hide quote
    January 16, 2016, Implementation Day
  32. Timeline of Nuclear Diplomacy With Iran

    Arms Control Association, 2023-01 · supports

    “May 8, 2018: President Trump announces that he is withdrawing the United States from the JCPOA”Hide quote
    May 8, 2018: President Trump announces that he is withdrawing the United States from the JCPOA
  33. Iran Presidential Elections, All Provinces (workbook)

    Iran Data Portal, Syracuse University, 2017-05 · supports

    “Province | no. eligible voters | no. votes | Turnout (percent) ... Iran (total) ... [Turnout (percent), by election:] 1st (1980) 67.42; 2nd (1981) 64.24; 3rd (1981) 74.26; 4th (1985) 54.78; 5th (1989) 54.59; 6th (1993) 50.66; 7th (1997) 79.92; 8th (2001) 66.77; 9th, first round (2005) 62.84; 9th, second round (2005) 59.76; 10th (2009) 85.22; 11th (2013) 76.25”Hide quote
    Province | no. eligible voters | no. votes | Turnout (percent) ... Iran (total) ... [Turnout (percent), by election:] 1st (1980) 67.42; 2nd (1981) 64.24; 3rd (1981) 74.26; 4th (1985) 54.78; 5th (1989) 54.59; 6th (1993) 50.66; 7th (1997) 79.92; 8th (2001) 66.77; 9th, first round (2005) 62.84; 9th, second round (2005) 59.76; 10th (2009) 85.22; 11th (2013) 76.25
  34. Presidential Elections in Iran: Number of Candidates Registered and Allowed to Run (infographic)

    Iran Data Portal, Syracuse University, 2017-04 · supports

    “Presidential Elections in Iran Number of Candidates Registered and Allowed to Run ... 1st 1980 124 ... 2nd 1981 71 ... 3rd 1981 46 ... 4th 1985 50 ... 5th 1989 79 ... 6th 1993 128 ... 7th 1997 238 ... 8th 2001 814 ... 9th 2005 1014 ... 10th 2009 475 ... 11th 2013 686 ... 12th 2017 1636 ... Candidates submitting their candidacy are first vetted by the Ministry of Interior and then by the Guardian Council. ... Number of candidates allowed to run may be different from the number of candidates finally ran.”Hide quote
    Presidential Elections in Iran Number of Candidates Registered and Allowed to Run ... 1st 1980 124 ... 2nd 1981 71 ... 3rd 1981 46 ... 4th 1985 50 ... 5th 1989 79 ... 6th 1993 128 ... 7th 1997 238 ... 8th 2001 814 ... 9th 2005 1014 ... 10th 2009 475 ... 11th 2013 686 ... 12th 2017 1636 ... Candidates submitting their candidacy are first vetted by the Ministry of Interior and then by the Guardian Council. ... Number of candidates allowed to run may be different from the number of candidates finally ran.
  35. Annual Report on the Death Penalty in Iran 2025

    Iran Human Rights (IHRNGO) and ECPM, 2026-04 · supports

    “EXECUTION TRENDS IN THE LAST 18 YEARS (2008-2025) [bar labels, 2008 to 2025 in order:] 350 402 546 676 580 687 753 972 530 517 273 280 267 333 582 834 975 1639 ... From IHRNGO’s first annual report in 2008 to 2025, Iranian authorities have executed at least 11,196 people ... At least 1,639 people were executed, marking the highest number of recorded executions since 1989 and a dramatic 68% increase compared to 2024, when 975 executions were recorded. ... With 222 executions, October was the bloodiest month in 2025 ... Only 113 executions (under 7%) were announced by official sources ... 60% of executions took place in the second half of the year. ... Execution numbers tend to increase when authorities fear social unrest and when the attention of the international community is focused on other geopolitical issues. ... A new surge in executions began in the months after the 12-day war between Iran and Israel in June ... Following the death of President Ebrahim Raisi on 19 May 2024, Iran held a presidential election marked by the lowest voter turnout in the history of the Islamic Republic. ... At least 2,292 people have been executed since Masoud Pezeshkian took office in July 2024. By comparison, during the less than three years of Ebrahim Raisi’s presidency (2021–2024), and the 8-year presidential terms of Hassan Rouhani (2013–2021) and Mahmoud Ahmadinejad (2005–2013), at least 1,714, 4,249, and 3,337 people were executed, respectively. ... The average number of monthly executions under Pezeshkian reached 135 (more than four executions per day), compared to 51 per month during Raisi’s tenure, 44 under Rouhani, and 35 under Ahmadinejad. ... The 2017 Amendment created hope that it would eventually lead to a complete halt in drug-related executions, and while it did lead to a decline in executions of men and a complete drop in executions of women until 2021, the outcome was not guaranteed. Since 2021, the 2017 Amendment has been reversed in practice, with drug-related executions rising from an average of 26 per year between 2018-2020 to at least 795 in 2025.”Hide quote
    EXECUTION TRENDS IN THE LAST 18 YEARS (2008-2025) [bar labels, 2008 to 2025 in order:] 350 402 546 676 580 687 753 972 530 517 273 280 267 333 582 834 975 1639 ... From IHRNGO’s first annual report in 2008 to 2025, Iranian authorities have executed at least 11,196 people ... At least 1,639 people were executed, marking the highest number of recorded executions since 1989 and a dramatic 68% increase compared to 2024, when 975 executions were recorded. ... With 222 executions, October was the bloodiest month in 2025 ... Only 113 executions (under 7%) were announced by official sources ... 60% of executions took place in the second half of the year. ... Execution numbers tend to increase when authorities fear social unrest and when the attention of the international community is focused on other geopolitical issues. ... A new surge in executions began in the months after the 12-day war between Iran and Israel in June ... Following the death of President Ebrahim Raisi on 19 May 2024, Iran held a presidential election marked by the lowest voter turnout in the history of the Islamic Republic. ... At least 2,292 people have been executed since Masoud Pezeshkian took office in July 2024. By comparison, during the less than three years of Ebrahim Raisi’s presidency (2021–2024), and the 8-year presidential terms of Hassan Rouhani (2013–2021) and Mahmoud Ahmadinejad (2005–2013), at least 1,714, 4,249, and 3,337 people were executed, respectively. ... The average number of monthly executions under Pezeshkian reached 135 (more than four executions per day), compared to 51 per month during Raisi’s tenure, 44 under Rouhani, and 35 under Ahmadinejad. ... The 2017 Amendment created hope that it would eventually lead to a complete halt in drug-related executions, and while it did lead to a decline in executions of men and a complete drop in executions of women until 2021, the outcome was not guaranteed. Since 2021, the 2017 Amendment has been reversed in practice, with drug-related executions rising from an average of 26 per year between 2018-2020 to at least 795 in 2025.
  36. Annual Report on Execution in Iran 2025–2026

    HRANA (Human Rights Activists in Iran Statistics Center), 2026-10-09 · supports

    “Ten-Year Trend of Executions in Iran (2016–2026) ... executions declined from 505 in 2016–2017 to 238 in 2018–2019. The number then increased each year from 2019–2020 onward, reaching 2,003 in 2025–2026, the highest total recorded across these ten reporting periods. ... 2025-2026 2,003 2024-2025 1,553 2023-2024 823 2022-2023 664 2021-2022 528 2020-2021 272 2019-2020 249 2018-2019 238 2017-2018 265 2016-2017 505”Hide quote
    Ten-Year Trend of Executions in Iran (2016–2026) ... executions declined from 505 in 2016–2017 to 238 in 2018–2019. The number then increased each year from 2019–2020 onward, reaching 2,003 in 2025–2026, the highest total recorded across these ten reporting periods. ... 2025-2026 2,003 2024-2025 1,553 2023-2024 823 2022-2023 664 2021-2022 528 2020-2021 272 2019-2020 249 2018-2019 238 2017-2018 265 2016-2017 505
  37. Annual Report on Execution in Iran 2025–2026 (monthly chart and political executions by month)

    HRANA (Human Rights Activists in Iran Statistics Center), 2026-10-09 · supports

    “the highest number of executions was recorded in December 2025, while the lowest full-month total was recorded in March 2026. The figures for October 2025 and October 2026, which cover only the last 22 days and the first seven days of those months respectively, are not representative of a full month. [Monthly chart labels, October 2025 to October 2026:] 200 324 404 334 282 10 30 73 114 73 85 69 5 ... Political and security-related executions 69 ... ◄ 35 people (51% of all political and security-related executions) were executed in connection with the January 2026 (Dey 1404) protests. ◄ 29 people were executed in April (14) and May 2026 (15) alone, the peak of executions during this period. ... By Month of Execution Month Number October 2025 1 November 2025 0 December 2025 1 January 2026 4 February 2026 0 March 2026 8 April 2026 14 May 2026 15 June 2026 5 July 2026 9 August 2026 6 September 2026 3 October 2026 3 Total 69”Hide quote
    the highest number of executions was recorded in December 2025, while the lowest full-month total was recorded in March 2026. The figures for October 2025 and October 2026, which cover only the last 22 days and the first seven days of those months respectively, are not representative of a full month. [Monthly chart labels, October 2025 to October 2026:] 200 324 404 334 282 10 30 73 114 73 85 69 5 ... Political and security-related executions 69 ... ◄ 35 people (51% of all political and security-related executions) were executed in connection with the January 2026 (Dey 1404) protests. ◄ 29 people were executed in April (14) and May 2026 (15) alone, the peak of executions during this period. ... By Month of Execution Month Number October 2025 1 November 2025 0 December 2025 1 January 2026 4 February 2026 0 March 2026 8 April 2026 14 May 2026 15 June 2026 5 July 2026 9 August 2026 6 September 2026 3 October 2026 3 Total 69
  38. World Development Indicators: GDP growth (annual %), Iran (API)

    World Bank, 2026-10-08 · supports

    “"indicator":{"id":"NY.GDP.MKTP.KD.ZG","value":"GDP growth (annual %)"}, "country":{"id":"IR","value":"Iran, Islamic Rep."} ... "lastupdated":"2026-10-08" ... "date":"2025","value":-2.82597163290347 ... "date":"2016","value":8.8150866425182”Hide quote
    "indicator":{"id":"NY.GDP.MKTP.KD.ZG","value":"GDP growth (annual %)"}, "country":{"id":"IR","value":"Iran, Islamic Rep."} ... "lastupdated":"2026-10-08" ... "date":"2025","value":-2.82597163290347 ... "date":"2016","value":8.8150866425182
  39. World Development Indicators: Inflation, consumer prices (annual %), Iran (API)

    World Bank, 2026-10-08 · supports

    “"indicator":{"id":"FP.CPI.TOTL.ZG","value":"Inflation, consumer prices (annual %)"},"country":{"id":"IR","value":"Iran, Islamic Rep."} ... "lastupdated":"2026-10-08" ... "date":"2025","value":42.1712244965444”Hide quote
    "indicator":{"id":"FP.CPI.TOTL.ZG","value":"Inflation, consumer prices (annual %)"},"country":{"id":"IR","value":"Iran, Islamic Rep."} ... "lastupdated":"2026-10-08" ... "date":"2025","value":42.1712244965444

The War's Human and Financial Costs, with Earlier Wars for Scale, 2026

  1. Day 39 of U.S. and Israeli Attacks on Iran: Extensive Damage to the Rail Network and Roads

    HRANA (Human Rights Activists News Agency), 2026-04-07 · supports

    “Aggregated data since the beginning of the conflict on February 28, 2026, based on incidents recorded in the incident tab and using minimum values for figures marked "more than": • Civilian fatalities: 1,701 people (including at least 254 children) • Military fatalities: 1,221 people • Unclassified fatalities (civilian/military): 714 people … Delays in medical reporting, difficulties in confirming identities, and restricted access to certain provinces may result in temporary undercounting. … they have not been included in the event-based calculations”Hide quote
    Aggregated data since the beginning of the conflict on February 28, 2026, based on incidents recorded in the incident tab and using minimum values for figures marked "more than": • Civilian fatalities: 1,701 people (including at least 254 children) • Military fatalities: 1,221 people • Unclassified fatalities (civilian/military): 714 people … Delays in medical reporting, difficulties in confirming identities, and restricted access to certain provinces may result in temporary undercounting. … they have not been included in the event-based calculations
  2. At least 7,650 killed in 40 days of war, including 1,030 civilians — Hengaw’s tenth report

    Hengaw Organization for Human Rights, 2026-04-08 · complicates

    “According to data collected by Hengaw, at least 7,650 people were killed during the recent war, of whom 1,030 (equivalent to 13.5%) were civilians. … At least 6,620 military personnel were killed, the majority of whom were members of the Islamic Revolutionary Guard Corps (IRGC) and the army. … Hengaw has repeatedly emphasized during the conflict that Iranian military forces abandoned official bases and were stationed in civilian locations, including schools, student dormitories, and mosques within residential areas. … To date, no comprehensive official report on military casualties has been issued by state authorities.”Hide quote
    According to data collected by Hengaw, at least 7,650 people were killed during the recent war, of whom 1,030 (equivalent to 13.5%) were civilians. … At least 6,620 military personnel were killed, the majority of whom were members of the Islamic Revolutionary Guard Corps (IRGC) and the army. … Hengaw has repeatedly emphasized during the conflict that Iranian military forces abandoned official bases and were stationed in civilian locations, including schools, student dormitories, and mosques within residential areas. … To date, no comprehensive official report on military casualties has been issued by state authorities.
  3. Middle East escalation of conflict — Global external situation report #10 (data as of 21 July)

    World Health Organization, 2026-07-22 · supports

    “Iran 3 200 000 [Displaced] 33 806 [Injured] 3 375 [Deaths] … All numbers are estimates and may differ from other sources due to data cutoff times. … Since the beginning of the hostilities on 28 February, national authorities reported 3375 deaths and 33 806 injuries in the Islamic Republic of Iran, including 15 injuries following strikes on 7 June. An additional 50 deaths and more than 517 injuries have been reported as occurring between 27 June – 19 July … Cumulative figures since 28 February have yet to be reported.”Hide quote
    Iran 3 200 000 [Displaced] 33 806 [Injured] 3 375 [Deaths] … All numbers are estimates and may differ from other sources due to data cutoff times. … Since the beginning of the hostilities on 28 February, national authorities reported 3375 deaths and 33 806 injuries in the Islamic Republic of Iran, including 15 injuries following strikes on 7 June. An additional 50 deaths and more than 517 injuries have been reported as occurring between 27 June – 19 July … Cumulative figures since 28 February have yet to be reported.
  4. World Development Indicators: Population, total (SP.POP.TOTL), Iran

    World Bank, 2026-10-08 · supports

    “"indicator":{"id":"SP.POP.TOTL","value":"Population, total"},"country":{"id":"IR","value":"Iran, Islamic Rep."},"countryiso3code":"IRN","date":"2025","value":92417681”Hide quote
    "indicator":{"id":"SP.POP.TOTL","value":"Population, total"},"country":{"id":"IR","value":"Iran, Islamic Rep."},"countryiso3code":"IRN","date":"2025","value":92417681
  5. Israeli, Iranian and US forces in Iran 2026 (conflict page)

    Airwars, 2026-10 · supports

    “Over 40 days Airwars tracked 267 civilian harm incidents and has published 71. … In June, U.S. strikes began again after negotiations faltered. Airwars' rapid response team has tracked 34 further incidents of civilian harm, of which 23 have been published.”Hide quote
    Over 40 days Airwars tracked 267 civilian harm incidents and has published 71. … In June, U.S. strikes began again after negotiations faltered. Airwars' rapid response team has tracked 34 further incidents of civilian harm, of which 23 have been published.
  6. Civilian harm in Iran after one month of war

    Airwars, 2026-03-27 · complicates

    “At least 1,443 civilians have been killed by U.S. and Israeli forces, including 217 children, according to HRA.”Hide quote
    At least 1,443 civilians have been killed by U.S. and Israeli forces, including 217 children, according to HRA.
  7. Report of the independent international fact-finding mission on the Islamic Republic of Iran (A/HRC/61/60)

    UN Human Rights Council, 2026-03-19 · complicates

    “On 3 March, the Iranian Red Crescent Society reported that 787 people had been killed in the Islamic Republic of Iran since the air strikes had begun.”Hide quote
    On 3 March, the Iranian Red Crescent Society reported that 787 people had been killed in the Islamic Republic of Iran since the air strikes had begun.
  8. Pentagon raises Iran war death toll to 21

    Task & Purpose, 2026-10-10 · supports

    “Since Feb. 28, 865 service members have been wounded in the war, the majority since July 7. … This summer the Pentagon split deaths and injuries in the war into two separate categories: one for Operation Epic Fury and one listed as 'overseas operations,' covering casualties since July.”Hide quote
    Since Feb. 28, 865 service members have been wounded in the war, the majority since July 7. … This summer the Pentagon split deaths and injuries in the war into two separate categories: one for Operation Epic Fury and one listed as 'overseas operations,' covering casualties since July.
  9. Pentagon's latest Iran war cost estimate: $43.6 billion

    Roll Call, 2026-09-18 · supports

    “The Pentagon's latest figure comprises $11.2 billion already obligated for operating expenses ... plus $32.4 billion in unfunded replacement costs for munitions, damaged aircraft and other assets … The new Pentagon estimate of $43.6 billion is current as of Sept. 3, the document said … the CBO said the war cost $38.1 billion through July … The IG, meanwhile, put the figure at $33.4 billion. Its estimate ran through June. Defense Secretary Pete Hegseth testified in July that the war would cost $37.5 billion through the end of September. The Pentagon has asked Congress for $67.1 billion in supplemental spending”Hide quote
    The Pentagon's latest figure comprises $11.2 billion already obligated for operating expenses ... plus $32.4 billion in unfunded replacement costs for munitions, damaged aircraft and other assets … The new Pentagon estimate of $43.6 billion is current as of Sept. 3, the document said … the CBO said the war cost $38.1 billion through July … The IG, meanwhile, put the figure at $33.4 billion. Its estimate ran through June. Defense Secretary Pete Hegseth testified in July that the war would cost $37.5 billion through the end of September. The Pentagon has asked Congress for $67.1 billion in supplemental spending
  10. DOD officials say Iran war has cost $25 billion so far during congressional grilling

    NPR (via KASU), 2026-04-29 · supports

    “Twenty-five billion dollars - that's how much the Pentagon estimates the war with Iran is costing.”Hide quote
    Twenty-five billion dollars - that's how much the Pentagon estimates the war with Iran is costing.
  11. Costs of the Armed Conflict With Iran (letter, 15 September 2026; archived 1 October 2026)

    Congressional Budget Office, 2026-09-15 · supports

    “CBO estimates that as of August 1, 2026, the armed conflict with Iran has cost DoD approximately $38 billion. … if the level of violence remained as low as it was in May and June, an additional month of conflict would cost $2 billion; if the intensity of the conflict increased to roughly the level experienced in July, the cost per month would increase to $3 billion. … CBO relied on government databases and public reports because DoD did not respond to CBO's requests for information. … This past June, the Administration requested $87.6 billion in supplemental appropriations, of which $67.1 billion was for DoD to pay for the conflict. … relatively few U.S. forces have been involved compared with the much larger and longer U.S. operations in Iraq and Afghanistan … in the first quarter of 2027, inflation (measured year over year) in the price index for personal consumption expenditures (PCE) is now estimated to be 0.5 percentage points higher than the agency projected in February 2026, and core PCE inflation is estimated to be 0.3 percentage points higher”Hide quote
    CBO estimates that as of August 1, 2026, the armed conflict with Iran has cost DoD approximately $38 billion. … if the level of violence remained as low as it was in May and June, an additional month of conflict would cost $2 billion; if the intensity of the conflict increased to roughly the level experienced in July, the cost per month would increase to $3 billion. … CBO relied on government databases and public reports because DoD did not respond to CBO's requests for information. … This past June, the Administration requested $87.6 billion in supplemental appropriations, of which $67.1 billion was for DoD to pay for the conflict. … relatively few U.S. forces have been involved compared with the much larger and longer U.S. operations in Iraq and Afghanistan … in the first quarter of 2027, inflation (measured year over year) in the price index for personal consumption expenditures (PCE) is now estimated to be 0.5 percentage points higher than the agency projected in February 2026, and core PCE inflation is estimated to be 0.3 percentage points higher
  12. The War May Be Ending: What Did Epic Fury Cost?

    Center for Strategic and International Studies, 2026-06-23 · supports

    “CSIS estimates war costs to be around $40 billion ($34 billion to $42 billion).”Hide quote
    CSIS estimates war costs to be around $40 billion ($34 billion to $42 billion).
  13. Epic Fury costs as of the April 8 cease-fire

    American Enterprise Institute, 2026-04-10 · supports

    “we estimate an incremental cost to date of between $25 and $35 billion.”Hide quote
    we estimate an incremental cost to date of between $25 and $35 billion.
  14. A Renewed Iran War Would Test Diminished Interceptor Inventories

    Center for Strategic and International Studies, 2026-07-27 · supports

    “This has required extensive use of interceptors, with Patriot inventories now under 1,000 and THAAD inventories at about 250. Diminished stockpiles may force the United States and its coalition partners to take more risks with interceptions.”Hide quote
    This has required extensive use of interceptors, with Patriot inventories now under 1,000 and THAAD inventories at about 250. Diminished stockpiles may force the United States and its coalition partners to take more risks with interceptions.
  15. Last Rounds? The Status of Key Munitions at the Iran War Ceasefire

    Center for Strategic and International Studies, 2026-04-21 · complicates

    “Of the total deliveries, 5 percent was deducted for training, lot testing, and other nonoperational uses. … Up to 400 of the older PAC-2 missiles may also still be in the stockpile but are not included in Figure 9.”Hide quote
    Of the total deliveries, 5 percent was deducted for training, lot testing, and other nonoperational uses. … Up to 400 of the older PAC-2 missiles may also still be in the stockpile but are not included in Figure 9.
  16. American War and Military Operations Casualties: Lists and Statistics (RL32492)

    Congressional Research Service, 2020-07-29 · supports

    “Table 12. Operation Iraqi Freedom: Casualty Summary by Casualty Category (as of July 16, 2020) … Total Hostile Deaths 3,481 ... Total Nonhostile Deaths 937 ... Total Deaths 4,418 ... Total Wounded in Action 31,994 … [Operation Enduring Freedom] Total Deaths 2,349 ... Total Wounded In Action 20,149 … [Operation New Dawn] Total Deaths 74”Hide quote
    Table 12. Operation Iraqi Freedom: Casualty Summary by Casualty Category (as of July 16, 2020) … Total Hostile Deaths 3,481 ... Total Nonhostile Deaths 937 ... Total Deaths 4,418 ... Total Wounded in Action 31,994 … [Operation Enduring Freedom] Total Deaths 2,349 ... Total Wounded In Action 20,149 … [Operation New Dawn] Total Deaths 74
  17. The Cost of Iraq, Afghanistan, and Other Global War on Terror Operations Since 9/11 (RL33110)

    Congressional Research Service, 2014-12-08 · supports

    “Congress has approved appropriations for the past 13 years of war that total $1.6 trillion ... $686 billion (43%) for Operation Enduring Freedom (OEF) for Afghanistan and other counterterror operations received; $815 billion (51%) for Operation Iraqi Freedom (OIF)/Operation New Dawn (OND)”Hide quote
    Congress has approved appropriations for the past 13 years of war that total $1.6 trillion ... $686 billion (43%) for Operation Enduring Freedom (OEF) for Afghanistan and other counterterror operations received; $815 billion (51%) for Operation Iraqi Freedom (OIF)/Operation New Dawn (OND)
  18. Iraq War's Price Tag

    Council on Foreign Relations, 2005-02-02 · supports

    “In September 2002, White House economic adviser Lawrence Lindsey told The Wall Street Journal that a U.S. intervention in Iraq could cost between $100 billion and $200 billion... White House Budget Director Mitchell E. Daniels Jr. labeled that figure as 'very, very high' and estimated total war costs at between $50 billion to $60 billion. … Brookings Institution senior fellows Michael O'Hanlon and Lael Brainard estimated in August 2003 that military and reconstruction costs could range from $150 billion to $300 billion. … On the eve of the war in March 2003, an independent task force report from the Council on Foreign Relations estimated that stabilizing Iraq could cost some $20 billion a year for several years”Hide quote
    In September 2002, White House economic adviser Lawrence Lindsey told The Wall Street Journal that a U.S. intervention in Iraq could cost between $100 billion and $200 billion... White House Budget Director Mitchell E. Daniels Jr. labeled that figure as 'very, very high' and estimated total war costs at between $50 billion to $60 billion. … Brookings Institution senior fellows Michael O'Hanlon and Lael Brainard estimated in August 2003 that military and reconstruction costs could range from $150 billion to $300 billion. … On the eve of the war in March 2003, an independent task force report from the Council on Foreign Relations estimated that stabilizing Iraq could cost some $20 billion a year for several years
  19. Iran Update Special Report, July 13, 2026

    Institute for the Study of War and AEI Critical Threats Project, 2026-07-13 · supports

    “Iran has continuously made efforts to reconstitute its ballistic missile and drone programs since the ceasefire on April 8. … The United States will resume its blockade of Iranian ports beginning on July 14 at 4:00 PM ET.”Hide quote
    Iran has continuously made efforts to reconstitute its ballistic missile and drone programs since the ceasefire on April 8. … The United States will resume its blockade of Iranian ports beginning on July 14 at 4:00 PM ET.
  20. War Powers report to Congress (House Document 119-169)

    The White House (via GovInfo), 2026-07-10 · supports

    “military action commenced on July 7, 2026, against the Government of the Islamic Republic of Iran”Hide quote
    military action commenced on July 7, 2026, against the Government of the Islamic Republic of Iran
  21. Trump says US will not resume military strikes on Iran before midterm elections

    Associated Press (via WCAX), 2026-10-08 · supports

    “But Trump in a social media post on Thursday said the U.S. "will not be attacking Iran at any time prior to the Midterm Elections to be held in the United States on November 3rd."”Hide quote
    But Trump in a social media post on Thursday said the U.S. "will not be attacking Iran at any time prior to the Midterm Elections to be held in the United States on November 3rd."
  22. US warns allies to prepare for possible Iran strikes, retaliation after elections, AP sources say

    Associated Press (via WCAX), 2026-10-29 · supports

    “The cost of fighting the Iran war to American taxpayers has grown to $47.1 billion, according to the latest estimate the Pentagon has provided to Congress.”Hide quote
    The cost of fighting the Iran war to American taxpayers has grown to $47.1 billion, according to the latest estimate the Pentagon has provided to Congress.
  23. Defense Casualty Analysis System: conflict casualty summaries, Operation Epic Fury and Overseas Operations (monthly and by category)

    US Department of Defense, Defense Casualty Analysis System, 2026-10-28 · supports

    “[Operation Epic Fury, monthly] "month_Year":"FEBRUARY 2026" … "tot_kia":"0" … "tot_acc":"0" … "tot_wia":"36" … "month_Year":"MARCH 2026" … "tot_kia":"7" … "tot_acc":"7" … "tot_total":"14" … "tot_wia":"342" … "month_Year":"APRIL 2026" … "tot_wia":"34" … "month_Year":"JUNE 2026" … "tot_wia":"5" … "month_Year":"JULY 2026" … "tot_kia":"0" … "tot_acc":"1" … "tot_wia":"0" … [Overseas Operations, monthly] "month_Year":"JULY 2026" … "tot_kia":"4" … "tot_acc":"0" … "tot_wia":"350" … "month_Year":"SEPTEMBER 2026" … "tot_acc":"2" … "tot_wia":"94" … "month_Year":"OCTOBER 2026" … "tot_acc":"1" … "tot_wia":"4" … [category totals] Epic Fury "total":"15", "casualty_CATEGORIES":"TOTAL DEATHS" … "airforce":"6","spaceforce":"0","total":"6", "casualty_CATEGORIES":"ACCIDENT" … "total":"8", "casualty_CATEGORIES":"TOTAL NON-HOSTILE DEATHS" … "total":"417", "casualty_CATEGORIES":"WOUNDED IN ACTION (WIA)" … Overseas Operations "total":"7", "casualty_CATEGORIES":"TOTAL DEATHS" … "total":"3", "casualty_CATEGORIES":"TOTAL NON-HOSTILE DEATHS" … "total":"448", "casualty_CATEGORIES":"WOUNDED IN ACTION (WIA)" … "extractionDate":"October 28, 2026"”Hide quote
    [Operation Epic Fury, monthly] "month_Year":"FEBRUARY 2026" … "tot_kia":"0" … "tot_acc":"0" … "tot_wia":"36" … "month_Year":"MARCH 2026" … "tot_kia":"7" … "tot_acc":"7" … "tot_total":"14" … "tot_wia":"342" … "month_Year":"APRIL 2026" … "tot_wia":"34" … "month_Year":"JUNE 2026" … "tot_wia":"5" … "month_Year":"JULY 2026" … "tot_kia":"0" … "tot_acc":"1" … "tot_wia":"0" … [Overseas Operations, monthly] "month_Year":"JULY 2026" … "tot_kia":"4" … "tot_acc":"0" … "tot_wia":"350" … "month_Year":"SEPTEMBER 2026" … "tot_acc":"2" … "tot_wia":"94" … "month_Year":"OCTOBER 2026" … "tot_acc":"1" … "tot_wia":"4" … [category totals] Epic Fury "total":"15", "casualty_CATEGORIES":"TOTAL DEATHS" … "airforce":"6","spaceforce":"0","total":"6", "casualty_CATEGORIES":"ACCIDENT" … "total":"8", "casualty_CATEGORIES":"TOTAL NON-HOSTILE DEATHS" … "total":"417", "casualty_CATEGORIES":"WOUNDED IN ACTION (WIA)" … Overseas Operations "total":"7", "casualty_CATEGORIES":"TOTAL DEATHS" … "total":"3", "casualty_CATEGORIES":"TOTAL NON-HOSTILE DEATHS" … "total":"448", "casualty_CATEGORIES":"WOUNDED IN ACTION (WIA)" … "extractionDate":"October 28, 2026"

Iran's Actions Abroad: Proxies, Plots, Hostage-Taking and Attacks, 1979–2026

  1. AMIA bombing: Argentina court holds Iran, Hezbollah responsible

    Buenos Aires Times, 2024-04-11 · supports

    “Argentina’s Federal Criminal Cassation Court affirmed on Thursday that the deadly attacks on the Israeli Embassy and the AMIA Jewish community centre were the responsibility of the Islamic fundamentalist organisation Hezbollah, sponsored by the government of Iran. The ruling also declared that both episodes should be considered crimes against humanity, thus placing them beyond the statute of limitations despite the passage of time and the lack of judicial results. ... In 1992, a bomb attack on the Israeli Embassy left 29 dead. Two years later, a truck loaded with explosives drove into the AMIA Jewish centre and detonated, leaving 85 dead and 300 injured. ... put blame on then-Iran president Ali Akbar Hashemi Bahramaie Rafsanjani as well as other Iranian officials and Hezbollah members”Hide quote
    Argentina’s Federal Criminal Cassation Court affirmed on Thursday that the deadly attacks on the Israeli Embassy and the AMIA Jewish community centre were the responsibility of the Islamic fundamentalist organisation Hezbollah, sponsored by the government of Iran. The ruling also declared that both episodes should be considered crimes against humanity, thus placing them beyond the statute of limitations despite the passage of time and the lack of judicial results. ... In 1992, a bomb attack on the Israeli Embassy left 29 dead. Two years later, a truck loaded with explosives drove into the AMIA Jewish centre and detonated, leaving 85 dead and 300 injured. ... put blame on then-Iran president Ali Akbar Hashemi Bahramaie Rafsanjani as well as other Iranian officials and Hezbollah members
  2. AMIA: procesaron a siete iraníes y un libanés por el atentado

    TodoJujuy, 2026-09-21 · supports

    “AMIA: procesaron a siete iraníes y un libanés por el atentado ... Rafecas procesó como autores mediatos a cuatro exfuncionarios iraníes: Alí Fallahijan, exministro de Inteligencia. Alí Velayati, exministro de Relaciones Exteriores. Mohsen Rezai, excomandante de la Guardia Revolucionaria. Ahmad Vahidi, exjefe de la Fuerza Al Quds. ... la Cámara Federal de Casación Penal todavía debe resolver planteos sobre la constitucionalidad del juicio en ausencia”Hide quote
    AMIA: procesaron a siete iraníes y un libanés por el atentado ... Rafecas procesó como autores mediatos a cuatro exfuncionarios iraníes: Alí Fallahijan, exministro de Inteligencia. Alí Velayati, exministro de Relaciones Exteriores. Mohsen Rezai, excomandante de la Guardia Revolucionaria. Ahmad Vahidi, exjefe de la Fuerza Al Quds. ... la Cámara Federal de Casación Penal todavía debe resolver planteos sobre la constitucionalidad del juicio en ausencia
  3. France bomb plot: Iran diplomat Assadollah Assadi sentenced to 20 years

    BBC News, 2021-02-04 · supports

    “France bomb plot: Iran diplomat Assadollah Assadi sentenced to 20 years ... An Iranian diplomat has been convicted of a plot to bomb a big French rally held by an exiled opposition group.”Hide quote
    France bomb plot: Iran diplomat Assadollah Assadi sentenced to 20 years ... An Iranian diplomat has been convicted of a plot to bomb a big French rally held by an exiled opposition group.
  4. Two Russian Mob Leaders Sentenced to 25 Years in Prison for Murder-For-Hire Targeting a Journalist on Behalf of the Iranian Government

    US Department of Justice, 2025-10-30 · supports

    “The Iranian Government Hired Polad Omarov and Rafat Amirov to Kill Masih Alinejad in Exchange for $500,000 ... were each sentenced yesterday to 25 years' in prison ... The IRGC offered AMIROV $500,000 for Ms. Alinejad's murder”Hide quote
    The Iranian Government Hired Polad Omarov and Rafat Amirov to Kill Masih Alinejad in Exchange for $500,000 ... were each sentenced yesterday to 25 years' in prison ... The IRGC offered AMIROV $500,000 for Ms. Alinejad's murder
  5. Brooklyn Man Sentenced to 15 Years in Prison for Murder-for-Hire Plot and Stalking a Journalist and Prominent Critic of the Iranian Government

    US Department of Justice, 2026-01-28 · supports

    “Today, convicted murderer Carlisle Rivera, also known as “Pop,” was sentenced to 15 years in prison for his participation in a murder-for-hire plot directed by the Government of Iran targeting Masih Alinejad, a journalist, author, and human rights activist ... in 2024, Rivera was hired by his criminal confederate, Farhad Shakeri, to murder Masih Alinejad on instructions from high-ranking members of the Islamic Revolutionary Guard Corps (IRGC).”Hide quote
    Today, convicted murderer Carlisle Rivera, also known as “Pop,” was sentenced to 15 years in prison for his participation in a murder-for-hire plot directed by the Government of Iran targeting Masih Alinejad, a journalist, author, and human rights activist ... in 2024, Rivera was hired by his criminal confederate, Farhad Shakeri, to murder Masih Alinejad on instructions from high-ranking members of the Islamic Revolutionary Guard Corps (IRGC).
  6. Justice Department Announces Murder-For-Hire and Related Charges Against IRGC Asset and Two Local Operatives

    US Department of Justice, 2024-11-08 · complicates

    “Shakeri Was Tasked by Iranian Regime with Surveilling and Plotting to Assassinate President-Elect Donald J. Trump ... Farhad Shakeri, 51, of Iran; Carlisle Rivera, also known as Pop, 49, of Brooklyn, New York; and Jonathon Loadholt, 36, of Staten Island, New York, were charged today in a criminal complaint in connection with their alleged involvement in a plot to murder ... Shakeri remains at large and is believed to reside in Iran.”Hide quote
    Shakeri Was Tasked by Iranian Regime with Surveilling and Plotting to Assassinate President-Elect Donald J. Trump ... Farhad Shakeri, 51, of Iran; Carlisle Rivera, also known as Pop, 49, of Brooklyn, New York; and Jonathon Loadholt, 36, of Staten Island, New York, were charged today in a criminal complaint in connection with their alleged involvement in a plot to murder ... Shakeri remains at large and is believed to reside in Iran.
  7. Two Men Charged in Alleged Plot to Assassinate Saudi Arabian Ambassador to the United States

    US Department of Justice, 2011-10-11 · complicates

    “Two individuals have been charged in New York for their alleged participation in a plot directed by elements of the Iranian government to murder the Saudi Ambassador to the United States with explosives”Hide quote
    Two individuals have been charged in New York for their alleged participation in a plot directed by elements of the Iranian government to murder the Saudi Ambassador to the United States with explosives
  8. State Sponsors of Terrorism

    US Department of State, 2025-12 · supports

    “Currently there are four countries designated under these authorities: Cuba, the Democratic People’s Republic of Korea (North Korea), Iran, and Syria. Country Designation Date Cuba January 12, 2021 Democratic People’s Republic of Korea (North Korea) November 20, 2017 Iran January 19, 1984 Syria December 29, 1979”Hide quote
    Currently there are four countries designated under these authorities: Cuba, the Democratic People’s Republic of Korea (North Korea), Iran, and Syria. Country Designation Date Cuba January 12, 2021 Democratic People’s Republic of Korea (North Korea) November 20, 2017 Iran January 19, 1984 Syria December 29, 1979
  9. Country Reports on Terrorism 2023

    US Department of State, 2025-03 · supports

    “In 2023, Iran remained the leading state sponsor of terrorism ... Iran has provided hundreds of millions of dollars in support of Hizballah and trained thousands of its fighters at camps in Iran. ... Since the end of the 2006 Israeli-Hizballah conflict, Iran has supplied Hizballah in Lebanon with thousands of rockets, missiles, and small arms in violation of UNSCR 1701. ... Although there is no evidence that Iran knew about Hamas’s October 7 attacks on Israel in advance, its long-standing material, financial, and training support to Hamas enabled Hamas to execute the attack. ... On October 18, IAMGs restarted attacks against US military and diplomatic facilities, which came after an 18-month general pause in attacks in Iraq and a six-month pause in attacks in Syria. By the end of 2023, IAMGs had attacked US facilities in Iraq and Syria more than 100 times.”Hide quote
    In 2023, Iran remained the leading state sponsor of terrorism ... Iran has provided hundreds of millions of dollars in support of Hizballah and trained thousands of its fighters at camps in Iran. ... Since the end of the 2006 Israeli-Hizballah conflict, Iran has supplied Hizballah in Lebanon with thousands of rockets, missiles, and small arms in violation of UNSCR 1701. ... Although there is no evidence that Iran knew about Hamas’s October 7 attacks on Israel in advance, its long-standing material, financial, and training support to Hamas enabled Hamas to execute the attack. ... On October 18, IAMGs restarted attacks against US military and diplomatic facilities, which came after an 18-month general pause in attacks in Iraq and a six-month pause in attacks in Syria. By the end of 2023, IAMGs had attacked US facilities in Iraq and Syria more than 100 times.
  10. Final report of the Panel of Experts on Yemen (S/2024/731)

    UN Security Council, Panel of Experts on Yemen, 2024-10-11 · supports

    “Information gathered by the Panel indicates that they have been receiving technical assistance, training, weapons and financial support from the Islamic Republic of Iran, Iraqi armed groups and Hizbullah. ... 70. The Panel observes strong similarities between the documented materiel and those developed or operated by the Islamic Republic of Iran (53 items). Similar items are also operated by armed groups in Iraq (20), Lebanon (11), the occupied Palestinian territory (5), Bahrain (1) and Somalia (1)”Hide quote
    Information gathered by the Panel indicates that they have been receiving technical assistance, training, weapons and financial support from the Islamic Republic of Iran, Iraqi armed groups and Hizbullah. ... 70. The Panel observes strong similarities between the documented materiel and those developed or operated by the Islamic Republic of Iran (53 items). Similar items are also operated by armed groups in Iraq (20), Lebanon (11), the occupied Palestinian territory (5), Bahrain (1) and Somalia (1)
  11. Trends in Iranian External Assassination, Surveillance, and Abduction Plots (CTC Sentinel, vol. 15, no. 2)

    Combating Terrorism Center at West Point (Matthew Levitt), 2022-02-24 · complicates

    “This study draws on an unclassified and open-source dataset of 98 cases of Iranian external operations from December 1979 through December 2021. ... this is in no way a comprehensive listing of all such Iranian external operations. ... Of the 98 cases in the dataset, 42 involved the targeting of dissidents, 21 of whom were dual nationals or legal foreign residents. An additional 31 of the 98 cases targeted Jews or Israelis, 24 targeted diplomats, 24 targeted Western interests, seven targeted Gulf state interests, five involved the fatwa against Salman Rushdie ... Out of 55 cases over the past decade, 22 operations targeted Iranian dissidents, 25 cases targeted Jews or Israelis, 19 targeted diplomats, 12 targeted specifically Western interests, and six targeted Gulf state interests. ... The dataset suggests there was a gap in Iranian external operational activity for about 23 months after 9/11 ... there were only two plots in Europe in the decade after 9/11. This dramatic drop in attacks in Europe reversed itself over the past decade, however, with 17 plots in Europe since 2011.”Hide quote
    This study draws on an unclassified and open-source dataset of 98 cases of Iranian external operations from December 1979 through December 2021. ... this is in no way a comprehensive listing of all such Iranian external operations. ... Of the 98 cases in the dataset, 42 involved the targeting of dissidents, 21 of whom were dual nationals or legal foreign residents. An additional 31 of the 98 cases targeted Jews or Israelis, 24 targeted diplomats, 24 targeted Western interests, seven targeted Gulf state interests, five involved the fatwa against Salman Rushdie ... Out of 55 cases over the past decade, 22 operations targeted Iranian dissidents, 25 cases targeted Jews or Israelis, 19 targeted diplomats, 12 targeted specifically Western interests, and six targeted Gulf state interests. ... The dataset suggests there was a gap in Iranian external operational activity for about 23 months after 9/11 ... there were only two plots in Europe in the decade after 9/11. This dramatic drop in attacks in Europe reversed itself over the past decade, however, with 17 plots in Europe since 2011.
  12. Iranian External Operations in Europe: The Criminal Connection

    International Centre for Counter-Terrorism (Matthew Levitt and Sarah Boches), 2024-10-16 · complicates

    “of the 218 plots in the overall dataset covering 1979 to today, 102 plots occurred in Europe. The pace of Iranian operational activity in Europe has spiked, with over half of these plots (54 cases) occurring between 2021 and 2024. These operations have focused on targeting Iranian dissidents (34 cases), including journalists broadcasting news in Farsi that Tehran would rather not see the light of day, Israeli citizens and diplomats (10 cases), and Jews (7 cases). Furthermore, of these 54 plots, sixteen involved the use of criminal perpetrators to carry out the attacks. ... The Washington Institute has produced an interactive map drawing on this dataset which depicts Iranian external operations – assassinations, abductions, intimidation and surveillance plots – around the world”Hide quote
    of the 218 plots in the overall dataset covering 1979 to today, 102 plots occurred in Europe. The pace of Iranian operational activity in Europe has spiked, with over half of these plots (54 cases) occurring between 2021 and 2024. These operations have focused on targeting Iranian dissidents (34 cases), including journalists broadcasting news in Farsi that Tehran would rather not see the light of day, Israeli citizens and diplomats (10 cases), and Jews (7 cases). Furthermore, of these 54 plots, sixteen involved the use of criminal perpetrators to carry out the attacks. ... The Washington Institute has produced an interactive map drawing on this dataset which depicts Iranian external operations – assassinations, abductions, intimidation and surveillance plots – around the world
  13. MI5 Director General delivers annual threat update

    MI5 (the Security Service), 2026-10-13 · supports

    “The other state keen on subcontracting its UK violence is Iran. I’ve been calling this out since 2022. Today, we continue to see familiar Iranian intent – using criminal proxies to try to intimidate oppositionists, Iranian media organisations, and Israeli sites. But 2026 has also seen the Iranians, like the Russians, attempting to expand their hybrid campaign. Over the last twelve months, our Iran-linked operations have led to more than fifty arrests in the UK. ... The spring saw a wave of arson and sabotage incidents targeting Jewish communities in the UK and other European nations. ... claimed by a group calling itself the Islamic Movement of the Companions of the Right. Behind this front sat members of the IRGC. ... The other major shift this year has been Iranian ambitions to come at harder targets, like military sites.”Hide quote
    The other state keen on subcontracting its UK violence is Iran. I’ve been calling this out since 2022. Today, we continue to see familiar Iranian intent – using criminal proxies to try to intimidate oppositionists, Iranian media organisations, and Israeli sites. But 2026 has also seen the Iranians, like the Russians, attempting to expand their hybrid campaign. Over the last twelve months, our Iran-linked operations have led to more than fifty arrests in the UK. ... The spring saw a wave of arson and sabotage incidents targeting Jewish communities in the UK and other European nations. ... claimed by a group calling itself the Islamic Movement of the Companions of the Right. Behind this front sat members of the IRGC. ... The other major shift this year has been Iranian ambitions to come at harder targets, like military sites.
  14. Director General Sir Ken McCallum gives threat update

    MI5 (the Security Service), 2025-10-16 · supports

    “Iran’s autocratic regime is likewise frantically trying to silence its opponents around the world, including in the UK. ... MI5 has tracked more than twenty potentially lethal Iran-backed plots in just the one year since I last stood at this podium. ... In a collective public response to this shared threat, fourteen nations, including the UK, together condemned Iran’s efforts to kill, kidnap and harass in Europe and North America.”Hide quote
    Iran’s autocratic regime is likewise frantically trying to silence its opponents around the world, including in the UK. ... MI5 has tracked more than twenty potentially lethal Iran-backed plots in just the one year since I last stood at this podium. ... In a collective public response to this shared threat, fourteen nations, including the UK, together condemned Iran’s efforts to kill, kidnap and harass in Europe and North America.
  15. US designates Iran as state sponsor of wrongful detention

    Iran International, 2026-02-27 · supports

    “US Secretary of State Marco Rubio on Friday designated Iran a state sponsor of wrongful detention, citing its pattern of hostage-taking and arbitrary detention of Americans. “The Iranian regime must stop taking hostages and release all Americans unjustly detained in Iran, steps that could end this designation and associated actions,” Rubio said in a statement. ... "No American should travel to Iran for any reason.”Hide quote
    US Secretary of State Marco Rubio on Friday designated Iran a state sponsor of wrongful detention, citing its pattern of hostage-taking and arbitrary detention of Americans. “The Iranian regime must stop taking hostages and release all Americans unjustly detained in Iran, steps that could end this designation and associated actions,” Rubio said in a statement. ... "No American should travel to Iran for any reason.
  16. Low turnout as conservatives dominate Iran parliamentary election

    Al Jazeera, 2024-03-04 · supports

    ““Around 25 million people participated with a turnout of 41 percent,” Interior Minister Ahmad Vahidi said at a news conference in Tehran”Hide quote
    “Around 25 million people participated with a turnout of 41 percent,” Interior Minister Ahmad Vahidi said at a news conference in Tehran
  17. Tracking Anti-U.S. and Anti-Israel Strikes From Iraq and Syria During the Gaza Crisis

    The Washington Institute for Near East Policy (Michael Knights, Amir al-Kaabi and Hamdi Malik, Militia Spotlight), 2024-12-03 · supports

    “Claimed attacks on U.S. and coalition bases in Iraq and Syria, which were the predominant category until the temporary cessation of anti-U.S. attacks in February-July 2024. When we can confirm attacks, we have given them a serial number in the lefthand column. We can have very high confidence these claimed anti-coalition attacks actually occurred. Since September 2024, the number of anti-U.S. strikes in Syria seems to be increasing again, but it is very hard to get high-confidence evidence of these attacks. ... Claimed attacks on Israel ... do not receive a serial number. ... Serial Number | Date | Target ... 223 | Dec 3 | Conoco, Syria ... 182 | Feb 4 | Omar, Syria ... 180 | Jan 28 | Erbil, Iraq ... 128 | Dec 31 | Erbil, Iraq ... 90 | Nov 23 | al-Asad and Erbil, Iraq ... 32 | Oct 31 | al-Asad, Iraq ... 1 | Oct 18”Hide quote
    Claimed attacks on U.S. and coalition bases in Iraq and Syria, which were the predominant category until the temporary cessation of anti-U.S. attacks in February-July 2024. When we can confirm attacks, we have given them a serial number in the lefthand column. We can have very high confidence these claimed anti-coalition attacks actually occurred. Since September 2024, the number of anti-U.S. strikes in Syria seems to be increasing again, but it is very hard to get high-confidence evidence of these attacks. ... Claimed attacks on Israel ... do not receive a serial number. ... Serial Number | Date | Target ... 223 | Dec 3 | Conoco, Syria ... 182 | Feb 4 | Omar, Syria ... 180 | Jan 28 | Erbil, Iraq ... 128 | Dec 31 | Erbil, Iraq ... 90 | Nov 23 | al-Asad and Erbil, Iraq ... 32 | Oct 31 | al-Asad, Iraq ... 1 | Oct 18

Outside Attempts to Topple, Coerce or Disarm Hostile Regimes, 1816–2023

  1. Jervis Forum Roundtable 17-6 on Downes, Catastrophic Success: Why Foreign-Imposed Regime Change Goes Wrong (Cornell University Press, 2021)

    H-Diplo/RJISSF (reviewers' summaries, with page numbers in Downes's book), 2025-10 · supports

    “Marshaling a new dataset of 120 cases of FIRC (1816–2008) … One-third of all FIRCs descend into civil war in the first post-intervention decade (94), especially in low-income countries, where FIRCs increase the risk of civil war by eight percentage points (100). … Foreign-imposed regime change more than doubles the likelihood of civil war in the decade that follows (94-96). … Civil war is four and a half times more likely to follow a leadership regime change than in other cases (98). And, whereas 47 percent of installed leaders have been forcibly removed from power, two-third of leaders installed through leadership regime change have lost power through irregular means (168). … Regime change also appears to have no significant effect on the probability of a future militarized dispute between the target and intervener (251-2). And indeed, leadership regime changes more than double the risk of a dispute occurring (252). … These states are no more likely to vote together in the United Nations General Assembly or to share alliance portfolios than other types of states (254-5). … Regime changes that seek to restore previously ousted rulers to power tend to have best outcomes … the base rate is quite low, and so even if FIRC doubles the risk of civil war onset, would-be interveners might view this as acceptable compared to maintaining the status quo.”Hide quote
    Marshaling a new dataset of 120 cases of FIRC (1816–2008) … One-third of all FIRCs descend into civil war in the first post-intervention decade (94), especially in low-income countries, where FIRCs increase the risk of civil war by eight percentage points (100). … Foreign-imposed regime change more than doubles the likelihood of civil war in the decade that follows (94-96). … Civil war is four and a half times more likely to follow a leadership regime change than in other cases (98). And, whereas 47 percent of installed leaders have been forcibly removed from power, two-third of leaders installed through leadership regime change have lost power through irregular means (168). … Regime change also appears to have no significant effect on the probability of a future militarized dispute between the target and intervener (251-2). And indeed, leadership regime changes more than double the risk of a dispute occurring (252). … These states are no more likely to vote together in the United Nations General Assembly or to share alliance portfolios than other types of states (254-5). … Regime changes that seek to restore previously ousted rulers to power tend to have best outcomes … the base rate is quite low, and so even if FIRC doubles the risk of civil war onset, would-be interveners might view this as acceptable compared to maintaining the status quo.
  2. You Can't Always Get What You Want: Why Foreign-Imposed Regime Change Seldom Improves Interstate Relations (Downes and O'Rourke, International Security 41:2), abstract

    Belfer Center for Science and International Affairs, Harvard Kennedy School, 2016 · supports

    “A new dataset and an analysis of foreign interventions in the Congo Wars show that FIRC damages relations between intervener and target state more often than it improves them.”Hide quote
    A new dataset and an analysis of foreign interventions in the Congo Wars show that FIRC damages relations between intervener and target state more often than it improves them.
  3. Forced to Be Free? Why Foreign-Imposed Regime Change Rarely Leads to Democratization (Downes and Monten, International Security 37:4), abstract

    Belfer Center for Science and International Affairs, Harvard Kennedy School, 2013 · supports

    “A statistical examination of seventy instances of foreign-imposed regime change (FIRC) in the twentieth century shows that implementing prodemocratic institutional reforms, such as sponsoring elections, is not enough to induce democratization; interveners will meet with little success unless conditions in the target state—in the form of high levels of economic development and societal homogeneity, and previous experience with representative governance—are favorable to democracy. Given that prospective regime change operations are likely to target regimes in poor, diverse countries, policymakers should scale back their expectations that democracy will flourish after FIRC.”Hide quote
    A statistical examination of seventy instances of foreign-imposed regime change (FIRC) in the twentieth century shows that implementing prodemocratic institutional reforms, such as sponsoring elections, is not enough to induce democratization; interveners will meet with little success unless conditions in the target state—in the form of high levels of economic development and societal homogeneity, and previous experience with representative governance—are favorable to democracy. Given that prospective regime change operations are likely to target regimes in poor, diverse countries, policymakers should scale back their expectations that democracy will flourish after FIRC.
  4. H-Diplo/ISSF Article Review 26 on Downes and Monten, "Forced to Be Free?"

    H-Diplo/ISSF (review by Mark Peceny), 2014-02-14 · complicates

    “They have collected data on 107 examples of this phenomenon from 1816 to the contemporary era, from Austria’s removal of revolutionaries from the government of the Kingdom of the Two Sicilies in 1821 through the 2003 overthrow of Saddam Hussein. … Iran in 1953, Guatemala in 1954, and Chile in 1973 are included, but the Reagan Doctrine cases of covert action in the 1980s are excluded.”Hide quote
    They have collected data on 107 examples of this phenomenon from 1816 to the contemporary era, from Austria’s removal of revolutionaries from the government of the Kingdom of the Two Sicilies in 1821 through the 2003 overthrow of Saddam Hussein. … Iran in 1953, Guatemala in 1954, and Chile in 1973 are included, but the Reagan Doctrine cases of covert action in the 1980s are excluded.
  5. Boston College Political Scientist Wins Award for Her Foreign Policy Book

    Boston College News, 2019-11 · supports

    “U.S. covert operations during the Cold War were unsuccessful more than 60 percent of the time and most failed to remain covert, often resulting in unforeseen, and disastrous, consequences, according to O’Rourke, who found that states targeted for regime change were more likely to experience civil war in the 10 years following intervention.”Hide quote
    U.S. covert operations during the Cold War were unsuccessful more than 60 percent of the time and most failed to remain covert, often resulting in unforeseen, and disastrous, consequences, according to O’Rourke, who found that states targeted for regime change were more likely to experience civil war in the 10 years following intervention.
  6. Covert Wars to What End?

    War on the Rocks, 2019-08-07 · supports

    “O'Rourke compiled an original dataset of U.S. regime-change operations carried out between 1947 and 1989, including 64 covert cases. … more than two thirds (44 of 64) were undertaken in support of authoritarian forces, 'including at least six operations that sought to replace liberal democratic governments with illiberal authoritarian regimes.'”Hide quote
    O'Rourke compiled an original dataset of U.S. regime-change operations carried out between 1947 and 1989, including 64 covert cases. … more than two thirds (44 of 64) were undertaken in support of authoritarian forces, 'including at least six operations that sought to replace liberal democratic governments with illiberal authoritarian regimes.'
  7. Review of Lindsey A. O'Rourke, Covert Regime Change: America's Secret Cold War

    H-War (review by Paxton Stover), 2024-08 · supports

    “covert operations are most likely to succeed against democratic governments, weak states, and American allies”Hide quote
    covert operations are most likely to succeed against democratic governments, weak states, and American allies
  8. Attacking the Atom: Does Bombing Nuclear Facilities Affect Proliferation? (Kreps and Fuhrmann, Journal of Strategic Studies), abstract

    Belfer Center for Science and International Affairs, Harvard Kennedy School, 2011-04 · supports

    “This article addresses these questions by conducting an analysis of 16 attacks against nuclear facilities from 1942 to 2007. … There is evidence that the peacetime attacks delayed the target's nuclear program, although the size of this effect is rather modest. The wartime cases were less successful, as attacks often missed their targets either due to operational failure or limited intelligence on the location of critical targets. In our concluding section we show that many of the conditions that were conducive to past success are not present in the contemporary Iran case. Overall, our findings reveal an interesting paradox. The historical cases that have successfully delayed proliferation are those when the attacking state struck well before a nuclear threat was imminent.”Hide quote
    This article addresses these questions by conducting an analysis of 16 attacks against nuclear facilities from 1942 to 2007. … There is evidence that the peacetime attacks delayed the target's nuclear program, although the size of this effect is rather modest. The wartime cases were less successful, as attacks often missed their targets either due to operational failure or limited intelligence on the location of critical targets. In our concluding section we show that many of the conditions that were conducive to past success are not present in the contemporary Iran case. Overall, our findings reveal an interesting paradox. The historical cases that have successfully delayed proliferation are those when the attacking state struck well before a nuclear threat was imminent.
  9. Revisiting Osirak: Preventive Attacks and Nuclear Proliferation Risks (Braut-Hegghammer, International Security 36:1), abstract

    Belfer Center for Science and International Affairs, Harvard Kennedy School, 2011 · complicates

    “The attack had mixed effects: it triggered a covert nuclear weapons program that did not previously exist, while necessitating a more difficult and timeconsuming technical route to developing nuclear weapons. Notwithstanding gross inefficiencies in the ensuing program, a decade later Iraq stood on the threshold of a nuclear weapons capability.”Hide quote
    The attack had mixed effects: it triggered a covert nuclear weapons program that did not previously exist, while necessitating a more difficult and timeconsuming technical route to developing nuclear weapons. Notwithstanding gross inefficiencies in the ensuing program, a decade later Iraq stood on the threshold of a nuclear weapons capability.
  10. When Did (and Didn’t) States Proliferate? Chronicling the Spread of Nuclear Weapons (Philipp C. Bleek), text and Table 1

    Belfer Center for Science and International Affairs, Harvard Kennedy School, 2017-06 · supports

    “Thirty-one countries at least opened the door to potential nuclear weapons programs, seventeen of those launched weapons programs, and ten acquired deliverable nuclear weapons. But proliferation has also been complemented by de-proliferation: one state that developed nuclear weapons subsequently gave them up, seven of those who launched programs never or have not yet acquired, and fourteen countries halted their exploration of nuclear weapons without launching programs. … Libya returned to no activity in 2003, when Libya announced that it was abandoning its weapons of mass destruction programs and allowing international inspections. … Iraqi exploration is coded as 1975, though the evidence is somewhat circumstantial, and pursuit is coded as 1981, returning to no activity in 1991. … Jo and Gartzke code pursuit as 1973. … Iraq’s activities prior to 1981, including as described by Braut-Hegghammer, are sufficiently robust that one might reasonably code them as pursuit rather than merely exploration … Iraq’s pursuit ended in 1991, when in the aftermath of the first Gulf War it was forced to give up its mass destruction capabilities and submit to an intensive verification regime. … one could reasonably code Iran as dropping from pursuit down to exploration either after 2003, based on the 2007 National Intelligence Assessment, or in 2015, when Iran agreed to significantly constrain its nuclear program under the Joint Comprehensive Plan of Action. … Syria returned to exploring in 2007 following the destruction of the Al-Kibar facility by Israel on September 6, 2007. There is no publicly available evidence of political decisions to either continue or cease activity on which to base a coding of continued exploration.”Hide quote
    Thirty-one countries at least opened the door to potential nuclear weapons programs, seventeen of those launched weapons programs, and ten acquired deliverable nuclear weapons. But proliferation has also been complemented by de-proliferation: one state that developed nuclear weapons subsequently gave them up, seven of those who launched programs never or have not yet acquired, and fourteen countries halted their exploration of nuclear weapons without launching programs. … Libya returned to no activity in 2003, when Libya announced that it was abandoning its weapons of mass destruction programs and allowing international inspections. … Iraqi exploration is coded as 1975, though the evidence is somewhat circumstantial, and pursuit is coded as 1981, returning to no activity in 1991. … Jo and Gartzke code pursuit as 1973. … Iraq’s activities prior to 1981, including as described by Braut-Hegghammer, are sufficiently robust that one might reasonably code them as pursuit rather than merely exploration … Iraq’s pursuit ended in 1991, when in the aftermath of the first Gulf War it was forced to give up its mass destruction capabilities and submit to an intensive verification regime. … one could reasonably code Iran as dropping from pursuit down to exploration either after 2003, based on the 2007 National Intelligence Assessment, or in 2015, when Iran agreed to significantly constrain its nuclear program under the Joint Comprehensive Plan of Action. … Syria returned to exploring in 2007 following the destruction of the Al-Kibar facility by Israel on September 6, 2007. There is no publicly available evidence of political decisions to either continue or cease activity on which to base a coding of continued exploration.
  11. Economic Sanctions: New Directions for the 21st Century (presentation of Economic Sanctions Reconsidered, 3rd edition)

    Peterson Institute for International Economics (Hufbauer, Schott, Elliott and Oegg), 2008-07 · supports

    “204 observations from World War I to 2000 … Sanctions “succeed” in about one-third of the cases overall, but the success rate depends importantly on the type of objectives sought … Success means sanctions contributed significantly to the partial or full achievement of the foreign policy goal … Targets are friendly or democratic countries, rather than enemies, autocrats … Libya – Success at Last? … But only after 20+ years … Destabilization of either existing regime unlikely … Carrots plus sticks strategy more effective than sticks alone … Do not expect quick success against autocratic regimes”Hide quote
    204 observations from World War I to 2000 … Sanctions “succeed” in about one-third of the cases overall, but the success rate depends importantly on the type of objectives sought … Success means sanctions contributed significantly to the partial or full achievement of the foreign policy goal … Targets are friendly or democratic countries, rather than enemies, autocrats … Libya – Success at Last? … But only after 20+ years … Destabilization of either existing regime unlikely … Carrots plus sticks strategy more effective than sticks alone … Do not expect quick success against autocratic regimes
  12. Why Economic Sanctions Still Do Not Work (Pape, International Security, with Elliott's reply), abstract

    Belfer Center for Science and International Affairs, Harvard Kennedy School, 1998 · contests

    “Robert Pape of Dartmouth College challenged the findings in Economic Sanctions Reconsidered … One of the study’s coauthors, Kimberly Ann Elliott of the Institute of International Economics, argues here that Pape mischaracterizes the principal objective of the work, which, according to Elliott, was to determine if and how economic sanctions contributed to desired foreign policy outcomes—not, as Pape contends, whether they caused them.”Hide quote
    Robert Pape of Dartmouth College challenged the findings in Economic Sanctions Reconsidered … One of the study’s coauthors, Kimberly Ann Elliott of the Institute of International Economics, argues here that Pape mischaracterizes the principal objective of the work, which, according to Elliott, was to determine if and how economic sanctions contributed to desired foreign policy outcomes—not, as Pape contends, whether they caused them.
  13. Threat and Imposition of Economic Sanctions 1945–2005: Updating the TIES Dataset (Morgan, Bapat and Kobayashi, Conflict Management and Peace Science 31:5), accepted manuscript

    White Rose Research Online (University of Leeds), 2014 · supports

    “The new version of the Threat and Imposition of Economic Sanctions (TIES) data set includes 1,412 cases in which one or more states threatened and/or imposed economic sanctions on a single target during the 1945-2005 period. … Sanctions were imposed in 845 of these cases (60%) leaving 567 cases that involved only threats (40%). … The U.S. is the primary sender in a bit over 48% of the cases … we see 384 cases identified as successful if we employ the strict definition of sanctions that requires total or partial acquiescence on the part of the target. Under this definition of ‘success’ sanctions may be considered successful in 27.2% of the cases, if we consider all cases, or in 37.5% of the cases for which we have data for the final outcome. … We see a 40.8% success rate in the pool of all cases and a remarkable 56% success rate when cases with missing final outcomes are removed. … The third definition based on the settlement nature scores identifies 454 successes, which translates to a 32.2% success rate in the full sample and a 44% success rate in the restricted sample.”Hide quote
    The new version of the Threat and Imposition of Economic Sanctions (TIES) data set includes 1,412 cases in which one or more states threatened and/or imposed economic sanctions on a single target during the 1945-2005 period. … Sanctions were imposed in 845 of these cases (60%) leaving 567 cases that involved only threats (40%). … The U.S. is the primary sender in a bit over 48% of the cases … we see 384 cases identified as successful if we employ the strict definition of sanctions that requires total or partial acquiescence on the part of the target. Under this definition of ‘success’ sanctions may be considered successful in 27.2% of the cases, if we consider all cases, or in 37.5% of the cases for which we have data for the final outcome. … We see a 40.8% success rate in the pool of all cases and a remarkable 56% success rate when cases with missing final outcomes are removed. … The third definition based on the settlement nature scores identifies 454 successes, which translates to a 32.2% success rate in the full sample and a 44% success rate in the restricted sample.
  14. The Global Sanctions Data Base – Release 4 (WIFO Working Paper 681/2024)

    Austrian Institute of Economic Research (WIFO), 2024-07 · complicates

    “Covering the period 1950-2023, it contains 1,547 sanction cases … The GSDB excludes sanction threats. Additionally, the GSDB defines nine political objectives (policy change, regime destabilization, ending territorial conflict, war prevention, ending war, terrorism, human rights violation, restoration of democracy, and other objectives that do not fit into any of the aforementioned categories) and five objective-specific success score categories (total success, partial success, negotiation settlement, failure, and ongoing for cases that have not been repealed) for each sanction objective.”Hide quote
    Covering the period 1950-2023, it contains 1,547 sanction cases … The GSDB excludes sanction threats. Additionally, the GSDB defines nine political objectives (policy change, regime destabilization, ending territorial conflict, war prevention, ending war, terrorism, human rights violation, restoration of democracy, and other objectives that do not fit into any of the aforementioned categories) and five objective-specific success score categories (total success, partial success, negotiation settlement, failure, and ongoing for cases that have not been repealed) for each sanction objective.
  15. Economics Faculty Create First-Ever Global Sanctions Data Base

    Drexel University LeBow College of Business, 2021-08-06 · complicates

    “Among other things, they found that more than 190 countries have imposed sanctions, and that the rate of success has been 30 to 50 percent.”Hide quote
    Among other things, they found that more than 190 countries have imposed sanctions, and that the rate of success has been 30 to 50 percent.
  16. When Does Aerial Bombing Work? (Horowitz and Reiter, Journal of Conflict Resolution 45:2), abstract

    IDEAS/RePEc, 2001-04 · supports

    “Multivariate probit analysis is used to test three hypotheses on all instances of air power coercion from 1917 to 1999 … Results show that coercion is more likely to work if the target's military vulnerability is higher, but higher levels of civilian vulnerability have no effect on the chances of coercion success; that target regime type has no effect; and that success is less likely when the attacker demands the target change its leadership.”Hide quote
    Multivariate probit analysis is used to test three hypotheses on all instances of air power coercion from 1917 to 1999 … Results show that coercion is more likely to work if the target's military vulnerability is higher, but higher levels of civilian vulnerability have no effect on the chances of coercion success; that target regime type has no effect; and that success is less likely when the attacker demands the target change its leadership.
  17. Why Bombing Syria Isn't Likely to Work

    Reason (Ronald Bailey), 2013-09-06 · supports

    “"Of our 53 cases of air power coercion, 19 (36 percent) were successes and 34 (64 percent) were failures," they report. Horowitz and Reiter define air power coercion a "success" when a target changes its behavior as demanded without being attacked.”Hide quote
    "Of our 53 cases of air power coercion, 19 (36 percent) were successes and 34 (64 percent) were failures," they report. Horowitz and Reiter define air power coercion a "success" when a target changes its behavior as demanded without being attacked.
  18. H-Diplo/ISSF Roundtable XI-9 on Nicholas L. Miller, Stopping the Bomb (Cornell University Press, 2018), review by Matthew Fuhrmann

    H-Diplo/ISSF, 2019-01-27 · complicates

    “As Miller’s analysis shows, once a program had started, sanctions succeeded in only three of 22 cases (135). Thus, based on this analysis, sanctions appear to work about 14 percent of the time—a pretty dismal success rate. … Miller correctly points out, however, that we cannot infer much about the value of sanctions as an instrument of nonproliferation by limiting our analysis to these episodes. We must also look at the cases where the prospect of sanctions deterred a country from starting a bomb program in the first place. Once we do that, a much more sanguine picture emerges. … Sanctions threats can work if they are credible and if the potential proliferator is highly dependent on the United States.”Hide quote
    As Miller’s analysis shows, once a program had started, sanctions succeeded in only three of 22 cases (135). Thus, based on this analysis, sanctions appear to work about 14 percent of the time—a pretty dismal success rate. … Miller correctly points out, however, that we cannot infer much about the value of sanctions as an instrument of nonproliferation by limiting our analysis to these episodes. We must also look at the cases where the prospect of sanctions deterred a country from starting a bomb program in the first place. Once we do that, a much more sanguine picture emerges. … Sanctions threats can work if they are credible and if the potential proliferator is highly dependent on the United States.
  19. Rupal Mehta, Delaying Doomsday: The Politics of Nuclear Reversal (event summary)

    Lawrence Livermore National Laboratory, Center for Global Security Research, 2020-02-25 · supports

    “the important role that external incentives—sanctions and rewards can play in nuclear negotiations, especially when the threat to use force remains 'on the table'. Specifically, this book argues that nuclear reversal is most likely when states are threatened with sanctions and offered face-saving rewards that help them withstand domestic political opposition. … the study employs a unified, multi-method observational research design to identify patterns of behavior over time among all proliferators. In addition to quantitative analyses that systematically explores nuclear reversal historically, the book incorporates three in-depth case studies comparing the Indian, Iranian, and North Korean nuclear programs”Hide quote
    the important role that external incentives—sanctions and rewards can play in nuclear negotiations, especially when the threat to use force remains 'on the table'. Specifically, this book argues that nuclear reversal is most likely when states are threatened with sanctions and offered face-saving rewards that help them withstand domestic political opposition. … the study employs a unified, multi-method observational research design to identify patterns of behavior over time among all proliferators. In addition to quantitative analyses that systematically explores nuclear reversal historically, the book incorporates three in-depth case studies comparing the Indian, Iranian, and North Korean nuclear programs
  20. 'Cross the Line and I'm Gonna Do Nothing' (Boston Globe)

    Dartmouth News, 2013-06-24 · contests

    “In his 2006 book, Calculating Credibility, Press examined three 20th-century cases … 'When I went into this, I was certain that backing down was going to hurt credibility,' Press said. But what he found was that even if the leaders backed down from their original threats, they were still taken seriously in the future.”Hide quote
    In his 2006 book, Calculating Credibility, Press examined three 20th-century cases … 'When I went into this, I was certain that backing down was going to hurt credibility,' Press said. But what he found was that even if the leaders backed down from their original threats, they were still taken seriously in the future.
  21. Revisiting Reputation: How Past Actions Matter in International Politics (Weisiger and Yarhi-Milo, International Organization 69:2)

    Princeton University, 2015-11-11 · supports

    “We find that past action is closely connected to subsequent dispute initiation and that the effects of reputation generalize beyond the immediate circumstances of the past dispute. Although reputation is not all-important, leaders are well advised to consider the reputational implications of policy decisions in international conflict. … juxtaposing reputation for resolve to power and interests is misleading when past actions influence observers' beliefs about interests”Hide quote
    We find that past action is closely connected to subsequent dispute initiation and that the effects of reputation generalize beyond the immediate circumstances of the past dispute. Although reputation is not all-important, leaders are well advised to consider the reputational implications of policy decisions in international conflict. … juxtaposing reputation for resolve to power and interests is misleading when past actions influence observers' beliefs about interests
  22. Saudi crown prince says will develop nuclear bomb if Iran does

    Al Jazeera, 2018-03-15 · supports

    “'Saudi Arabia does not want to acquire any nuclear bomb, but without a doubt, if Iran developed a nuclear bomb, we will follow suit as soon as possible,' Mohammad bin Salman, popularly known as MBS, told US broadcaster CBS in an interview set to air on Sunday.”Hide quote
    'Saudi Arabia does not want to acquire any nuclear bomb, but without a doubt, if Iran developed a nuclear bomb, we will follow suit as soon as possible,' Mohammad bin Salman, popularly known as MBS, told US broadcaster CBS in an interview set to air on Sunday.
  23. Divining Nuclear Intentions: A Review Essay (Potter and Mukhatzhanova, International Security), abstract

    Belfer Center for Science and International Affairs, Harvard Kennedy School, 2008 · contests

    “Both works challenge conventional conceptions of the sources of nuclear weapons decisions and offer new insights into why past predictions of rapid proliferation failed to materialize and why current prognoses about rampant proliferation are similarly flawed.”Hide quote
    Both works challenge conventional conceptions of the sources of nuclear weapons decisions and offer new insights into why past predictions of rapid proliferation failed to materialize and why current prognoses about rampant proliferation are similarly flawed.
  24. Peace Time: Cease-Fire Agreements and the Durability of Peace (Fortna), book page

    Princeton University Press, 2004 · supports

    “Strong agreements markedly lessen the risk of further war. Mechanisms such as demilitarized zones, dispute resolution commissions, peacekeeping, and external guarantees can help maintain peace between even the deadliest of foes.”Hide quote
    Strong agreements markedly lessen the risk of further war. Mechanisms such as demilitarized zones, dispute resolution commissions, peacekeeping, and external guarantees can help maintain peace between even the deadliest of foes.