Khamenei ruled Iran from 1989 until his death in 2026
IRANIAN OIL THROUGH HORMUZ
~20%
of global oil supply transits the Strait of Hormuz daily
URANIUM ENRICHMENT LEVEL
60%
Iran's peak enrichment level prior to the June 2026 strikes — near weapons-grade
OMAN-FACILITATED TALKS
3+
rounds of back-channel negotiations reported since Trump returned to office
Leadership
Nuclear
Diplomacy
Military
1989-06
Khamenei becomes Supreme Leader
Following Ayatollah Khomeini's death, Ali Khamenei is appointed Supreme Leader by the Assembly of Experts, beginning a nearly 37-year reign that would define Iran's nuclear ambitions and its 'Axis of Resistance' strategy.
2002-08
Iran's secret nuclear sites exposed
An Iranian opposition group publicly reveals the existence of the Natanz enrichment facility and Arak heavy-water reactor, triggering the international nuclear crisis.
2015-07
JCPOA signed
The Joint Comprehensive Plan of Action is agreed between Iran and the P5+1. Iran caps enrichment at 3.67% and accepts inspections in exchange for sanctions relief.
2018-05
U.S. withdraws from JCPOA
President Trump withdraws the United States from the nuclear deal and reimpose maximum-pressure sanctions. Iran gradually resumes enrichment beyond JCPOA limits.
2021-04
Iran reaches 60% enrichment
Iran announces it has enriched uranium to 60% purity — a level with no civilian justification and one step below the 90% weapons-grade threshold.
2025-01
Trump returns to office
President Trump begins his second term, immediately signaling a return to maximum-pressure policy while leaving open the possibility of a 'better deal' with Tehran.
2026-02
U.S. and Israeli airstrikes launch 2026 Iran War; Khamenei assassinated
Coordinated U.S. and Israeli airstrikes hit Tehran and Iranian nuclear and military infrastructure, killing Supreme Leader Ali Khamenei. Iranian state media confirmed his death on March 1. Iran announces 40 days of mourning. A provisional leadership council takes over pending selection of a new Supreme Leader.
2026-03
Mojtaba Khamenei named new Supreme Leader
The Assembly of Experts names Mojtaba Khamenei, son of the slain supreme leader, as Iran's new Supreme Leader. Mojtaba, wounded in the February 28 strike, has not appeared publicly since his appointment.
2026-06
Back-channel talks resume via Qatar and other mediators
Multiple rounds of indirect negotiations are reported, facilitated primarily by Qatari intermediaries. The U.S. and Iran hold indirect talks in Doha. Qatar reports 'positive progress.' Talks are paused around Khamenei's funeral ceremonies.
2026-07
Trump: Iran is 'dying to settle'; Khamenei funeral underway
As Iran's multi-day state funeral for slain Supreme Leader Khamenei — delayed from March due to the ongoing war — begins in Tehran on July 4, President Trump publicly declares that Iran is eager to reach a nuclear settlement, framing the moment as a diplomatic opening. Iran warns the U.S. and Israel against any attacks during the funeral.