What you count as “Peace” is hardly peaceful. Let's review the “peace” under the regime in Iran.
Over 4,000 executions were recorded by Amnesty International in the first few years after the 1979 revolution. Targets included former Shah officials, military/police, leftists (Tudeh Party, Fedayeen, MEK), monarchists, and others.
Baha'is: More than 200 executed or killed (plus disappearances and imprisonment). Notable case: 10 Baha'i women (including a 17-year-old) publicly hanged in Shiraz in June 1983 after refusing to renounce their faith; six Baha'i men executed days earlier. Community leaders and local/national assembly members systematically targeted.
Additional mass executions in 1981–1982: ~3,500 political cases.
Methods: Summary trials, firing squads, hangings. Many bodies unreturned or buried in unmarked graves.
Iranian fatalities: Estimates range from ~180,000–220,000 (one systematic review of records) to 500,000 (including missing; higher scholarly/government-linked figures). Primarily military (young Basij volunteers in human-wave attacks), with civilian deaths from Iraqi strikes/chemical weapons.
Regime responsibility includes: Continuing the war after initial defense (rejecting early ceasefires), ideological "human wave" tactics, and prolongation that amplified casualties. Iraqi chemical attacks killed or injured tens of thousands of Iranians. Total war dead (both sides) often estimated ~500,000–1 million.
Chain Murders (1988–1998, peaking in late 1990s)
At least 80 dissident intellectuals, writers, poets, translators, and activists assassinated or disappeared inside Iran (some cases abroad).
Perpetrated by Ministry of Intelligence agents. Government later acknowledged some killings (blaming "rogue elements") after public outcry (e.g., murders of Dariush and Parvaneh Forouhar). Victims included critics of the regime.
Annual figures fluctuate but often high: Iran frequently leads or ranks near the top globally in executions per capita. Amnesty recorded at least 2,159 executions in 2025 (more than double prior year; highest in decades for Iran; ~half drug-related per authorities). Many others for murder/rape, but critics highlight vague political charges (moharebeh—"enmity against God," baghi—"armed rebellion"), unfair trials, and use against protesters/dissidents.