Since the 1979 Iranian Revolution that established the Islamic Republic, the regime has been accused by the US, Israel, European governments, human rights organizations, and courts of systematic domestic atrocities, state-sponsored terrorism, proxy warfare, and a covert nuclear weapons program. These actions span nearly five decades and form the core legacy any US administration—including one seeking “peace”—must weigh. Iran denies most allegations, framing them as resistance to imperialism or self-defense, but intelligence assessments, UN/IAEA reports, court rulings, and survivor accounts paint a consistent pattern of aggression, repression, and bad-faith diplomacy.

Domestic Atrocities and Repression

The regime has prioritized internal control through mass executions, torture, and brutal crackdowns on dissent, often targeting political opponents, women, minorities, and protesters.

Early post-revolution purges (1980s): After the revolution, thousands of officials from the Shah’s era, leftists, and others were executed. In 1988, Supreme Leader Ayatollah Khomeini issued a fatwa leading to the summary execution of thousands of political prisoners (mainly People’s Mujahedin of Iran/MEK members and leftists) in prisons across Iran. “Death commissions” interrogated inmates; those refusing to renounce beliefs were hanged, often in groups. Estimates vary: Amnesty International and Human Rights Watch cite 2,800–5,000 deaths; opposition groups and some former officials (including Grand Ayatollah Montazeri’s memoirs) put the figure at up to 30,000, including women and teenagers as young as 13. Bodies were buried in mass graves; the events remain unacknowledged officially.

Ongoing executions: Iran has one of the world’s highest per-capita execution rates. In 2025 alone, over 2,000 people were executed (highest since the late 1980s), many for protest-related charges, drugs, or “enmity against God.” Juveniles and those tortured into false confessions have been among the victims.

Protest crackdowns: Repeated waves include the 2009 Green Movement, 2017–2018 economic protests, 2019 fuel protests (hundreds killed amid internet blackouts), 2022–2023 “Woman, Life, Freedom” uprising after Mahsa Amini’s death in custody (hundreds killed, including children, with sexual violence reported), and massive 2025–2026 nationwide protests triggered by economic collapse and repression. The latest saw thousands killed (estimates 3,000–7,000+ verified, with some reports up to 18,000–30,000), tens of thousands arrested, shoot-to-kill orders, snipers targeting heads/eyes, hospital raids, and expedited death sentences. Internet shutdowns and forced confessions on state TV are routine.

These are compounded by systemic abuses: arbitrary detention, torture, enforced disappearances, discrimination against women (mandatory hijab, gender-based violence), religious minorities (Baha’is, Christians, Sunnis), ethnic groups (Kurds, Baluchis), and LGBTQ individuals (death penalty for homosexuality). UN fact-finding missions describe a “machinery of repression” with near-total impunity.

State-Sponsored Terrorism and Proxy Warfare

Iran has been the US-designated leading state sponsor of terrorism since 1984. It funnels billions annually (e.g., $700 million+ to Hezbollah yearly; $100 million+ to Palestinian groups; $16 billion+ to Assad and proxies 2012–2020) via the Islamic Revolutionary Guard Corps (IRGC) Quds Force to the “Axis of Resistance.”

Key actions and suspicions:

1980s–1990s direct/proxy attacks on Americans and allies: 1979–1981 US Embassy hostage crisis (52 Americans held 444 days). 1983 Beirut: Iran-backed Islamic Jihad/Hezbollah bombed the US Embassy (17 Americans killed) and Marine barracks (241 US service members killed). 1983 Kuwait Embassy bombing attempt. 1996 Khobar Towers (Saudi Arabia): 19 US airmen killed (US courts and intelligence attribute to Iran/Hezbollah). Lebanon hostage crisis (1982–1992) killed Americans including CIA’s William Buckley.

Argentina bombings: 1992 Israeli Embassy (29 killed) and 1994 AMIA Jewish center (85 killed)—Iran and Hezbollah provided logistical support (Argentine and US investigations/court rulings).

Iraq and Syria: During the 2003–2011 US occupation, Iran supplied explosively formed penetrators (EFPs) and training to Shiite militias, killing/wounding hundreds of US troops. Post-2014, support for Assad in Syria (including militias committing atrocities) and ongoing arming of Iraqi groups. Since October 2023, Iran-backed “Islamic Resistance” militias launched 170+ attacks on US bases in Iraq/Syria (rockets, drones), injuring dozens of Americans.

Hezbollah (Lebanon): Iran’s most capable proxy—trained, funded, and armed by the IRGC. Beyond Beirut, it has conducted global attacks, fought in Syria, and maintains a massive rocket arsenal threatening Israel.

Hamas and Palestinian Islamic Jihad (Gaza/West Bank): Iran provides funding ($100 million+ annually), weapons, training, and rocket/drone tech. Hamas’s October 7, 2023 attack on Israel aligns with Iran’s “ring of fire” strategy, though direct operational control is debated.

Houthis (Yemen): Weapons, training, and missiles enabling Red Sea shipping attacks (2023–present), strikes on Saudi Arabia/UAE/Israel, and disruption of global trade. UN panels confirm Iranian-origin components.

Additional suspicions (backed by US court rulings/intelligence): Links to 1998 US embassy bombings in Africa, 2000 USS Cole attack, and plots against dissidents/US officials (e.g., 2022–2023 assassination plots against John Bolton). Cyberattacks, tanker seizures in the Gulf, and assassinations of opponents abroad continue.

Nuclear Program and Ballistic Missiles

Iran signed the NPT in 1968 but pursued secret weaponization. The IAEA and Western intelligence confirm a coordinated “Amad Plan” in the late 1990s–2003 for nuclear warheads (implosion tests, neutron initiators, etc.). Post-2003 activities continued in some areas. Iran has enriched uranium to 60% (near weapons-grade), amassed enough for multiple bombs if further processed, and restricted IAEA access. It violated JCPOA limits after the US withdrawal and has advanced centrifuges/missile delivery systems capable of reaching Israel/Europe.

Why This Matters for Any “Peace” Effort

These are not isolated incidents but a deliberate strategy of exporting the revolution, deterring foes via proxies (“forward defense”), and hedging toward nuclear breakout while denying intent. Past deals (e.g., JCPOA) faced criticism for insufficient verification and sunset clauses. A realistic approach would demand verifiable dismantling of proxy funding, IAEA snap inspections, missile limits, and human rights benchmarks—plus consequences for violations—rather than relying on untested assurances. Iran’s record shows tactical pauses but strategic continuity. Truth-seeking requires acknowledging this history without illusion.