Timeline
March 8, 2026 — March 15, 2026
World
Timeline: How the U.S.-Iran War Escalated Over Two Weeks in March 2026
This timeline tracks the escalation of military conflict between the United States, Israel, and Iran following a major military operation that killed Iran's Supreme Leader. The story spans from the initial strikes in late February through mid-March 2026, covering battlefield developments, leadership changes, diplomatic efforts, and global economic impacts during what became a rapidly intensifying regional war.
11 events · 7 days · 17 source articles
Sat, Feb 28, 2026
Major
U.S. and Israel Launch Major Military Operation Against Iran
The United States and Israel initiated large-scale military strikes against Iran. The operation resulted in the death of Iran's Supreme Leader Ali Khamenei and multiple high-ranking Iranian military and government officials. This decapitation strike marked the beginning of open warfare between the nations.
Sun, Mar 1, 2026
Major
Iran Launches Counterattacks Against U.S. and Israeli Targets
Iran responded to the initial strikes by targeting Israeli territory and U.S. military bases throughout the Middle East. The Iranian military began what it called 'Operation True Promise 4,' launching multiple waves of missile attacks. President Trump initially suggested Iran's new leadership wanted dialogue.
Tue, Mar 3, 2026
Moderate
Trump Declares Negotiations 'Too Late'
Just two days after suggesting openness to dialogue, President Trump reversed course and declared on social media that it was 'too late' for Iran to negotiate. This signaled a hardening of the U.S. position as military operations continued to intensify.
Sat, Mar 7, 2026
Major
Iran Claims Destruction of U.S. Regional Defense Network
Iran's Revolutionary Guard announced it had destroyed seven advanced radar systems forming part of the U.S. regional defense network, including an FPS strategic radar at Qatar's Al Udeid Air Base and THAAD TPY radars in Jordan and UAE. The Guard claimed this 'radar blindness' would enable larger future strikes. Iran also struck U.S. facilities in Bahrain and Israel's Haifa oil refinery.
Sun, Mar 8, 2026
Moderate
Iran Details Week One Operations: Over 200 Targets Hit
Iranian military officials released details of Operation True Promise 4's 26th round, stating they had struck over 200 U.S. and Israeli targets during the first week of conflict. The operations utilized Khaybbar-Shekan, Emad, and Ghadr missiles, some equipped with cluster warheads, targeting Israeli territory from north to south.
Mon, Mar 9, 2026
Major
Mojtaba Khamenei Becomes Iran's New Supreme Leader
As the conflict entered its tenth day, Mojtaba Khamenei, son of the killed leader, assumed power as Iran's new Supreme Leader. Hardline supporters held mass rallies across Iran pledging loyalty to the new leadership. President Trump called the appointment 'a major mistake' but suggested the war might end sooner than expected.
Mon, Mar 9, 2026
Major
Conflict Expands Beyond Iran: Regional Casualties Mount
The war's reach expanded with at least 16 people killed in southern Lebanon, including a priest. Turkey reported intercepting an Iranian missile in its airspace, prompting President Erdogan to warn Tehran. Qatar intercepted 17 ballistic missiles. Oil prices surged above $100 per barrel for the first time since Russia's 2022 invasion of Ukraine.
Thu, Mar 12, 2026
Major
Iran's New Leader Vows to Block Strait of Hormuz
In his first statement as Supreme Leader, Mojtaba Khamenei announced Iran would continue blocking the Strait of Hormuz as a key countermeasure against the United States. This vital global energy chokepoint became the new focal point of the conflict, threatening worldwide oil supplies.
Fri, Mar 13, 2026
Moderate
Iran and Hezbollah Launch First Coordinated Strike on Israel
Iran and Lebanese Hezbollah conducted their first joint coordinated attack against Israel, demonstrating increased cooperation among 'Axis of Resistance' forces. Iraqi resistance groups had already launched over 300 attacks. U.S. officials reported at least 13 American military personnel killed and approximately 200 wounded, though actual casualties may be higher.
Sat, Mar 14, 2026
Major
Trump Rejects Ceasefire Negotiations from Arab Mediators
President Trump rejected ceasefire proposals from Oman and Egypt, who had been mediating between the U.S. and Iran. A senior White House official stated Trump was 'not interested' in talks and would 'continue the mission.' Trump vowed to 'heavily bomb Iran's coastline' to reopen the Strait of Hormuz, claiming the U.S. had destroyed '100% of Iran's military capability.'
Sun, Mar 15, 2026
Major
Iran Launches 53rd Wave of Attacks; Conflict Enters Third Week
Iran's Revolutionary Guard confirmed launching its 53rd wave of attacks using hypersonic missiles and drones against U.S. bases in the UAE, vowing to continue expanding strikes. Iranian statistics claimed over 1,300 civilian deaths, while the U.S. stated it had struck over 15,000 Iranian targets. International experts warned the U.S. was approaching 'the next war quagmire' with risks of protracted conflict increasing.
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