Timeline
March 22, 2026 — March 23, 2026
World
Timeline: How the US-Israel War on Iran Expanded into Lebanon Over 3 Weeks
This timeline tracks the escalation of the US-Israel military campaign against Iran, which began on February 28, 2026, and expanded significantly into Lebanon by late March. The conflict has involved strikes on nuclear facilities, energy infrastructure, and civilian targets, while Israel's campaign against Hezbollah in Lebanon has displaced over a million people and raised fears of a large-scale ground invasion.
19 events · 1 days · 30 source articles
Sat, Feb 28, 2026
Major
US-Israel launch military campaign against Iran
The conflict begins on February 28 with US-Israeli bombardment of Iran, aimed at removing Iran's nuclear threat and destroying its ballistic missile capability. At least 175 people, mostly children, are killed when a Tomahawk missile strikes an Iranian school on the first day. US investigators reportedly believe American forces are responsible for this deadly strike.
Sun, Mar 1, 2026
Major
Hezbollah begins rocket attacks on Israel in response
Hezbollah fires rockets into northern Israel in response to the US-Israel war on Iran, marking the beginning of a secondary front in Lebanon. This triggers Israeli military operations against the Iranian-backed group, expanding the conflict beyond Iran itself.
Sat, Mar 7, 2026
Moderate
First week of war concludes with heavy civilian casualties
By the end of the first week (February 28-March 7), Iranian civilians are bearing the brunt of the campaign, with the school bombing representing the deadliest single incident. The conflict begins affecting energy infrastructure across the Gulf region.
Tue, Mar 17, 2026
Moderate
US begins major military buildup in Middle East
The Pentagon sends the amphibious assault ship USS Tripoli with Marines and sailors toward the Middle East, marking the first of multiple deployments. This signals US commitment to a prolonged military campaign in the region.
Fri, Mar 20, 2026
Major
Iranian and Israeli strikes target energy and nuclear facilities
Israel strikes Iran's South Pars gas field, which draws from the world's biggest known gas reserve. Iranian attacks also hit Kuwait's Mina Al-Ahmadi refinery and Qatar's Ras Laffan facility, targeting critical regional energy infrastructure. The conflict expands to affect global energy supplies.
Sat, Mar 21, 2026
Major
Israel vows to significantly escalate attacks on Iran
Israeli Defense Minister Israel Katz announces that US and Israeli strikes against Iran will increase 'considerably' in the coming week. He states the war will continue until all threats to Israeli security and American interests are eliminated, indicating no near-term resolution.
Sat, Mar 21, 2026
Major
Strike on Iranian nuclear facility at Natanz
Israel or the US strikes Iran's uranium enrichment facility at Natanz in Isfahan province. Israel denies involvement while the US neither confirms nor denies responsibility. This attack on nuclear infrastructure triggers immediate Iranian retaliation threats.
Sun, Mar 22, 2026
Major
Iran retaliates with missile strikes on Israeli nuclear site
Iran launches retaliatory strikes on Dimona and Arad in southern Israel, targeting the Dimona nuclear research center. At least two ballistic missiles penetrate Israeli air defenses, injuring over 100 people. This marks a significant failure of Israeli missile defense systems and demonstrates Iran's capability to strike deep into Israeli territory.
Sun, Mar 22, 2026
Major
Trump issues 48-hour ultimatum over Strait of Hormuz
President Trump threatens to 'obliterate' Iranian power plants if Tehran does not fully reopen the Strait of Hormuz within 48 hours. Iran's military responds by threatening to completely close the strait until any destroyed power plants are rebuilt, risking global oil supply disruptions.
Sun, Mar 22, 2026
Moderate
Second wave of US military reinforcements deployed
The Pentagon sends USS Boxer, USS Comstock, and USS Portland carrying the 11th Marine Expeditionary Unit (approximately 2,500 Marines) from San Diego to the Middle East. This represents the second major deployment within a week, signaling preparations for prolonged operations.
Sun, Mar 22, 2026
Major
Humanitarian crisis deepens in Lebanon as displaced reach one million
Over one million people are displaced in Lebanon, with many forced to sleep on streets due to unaffordable housing. The humanitarian situation is described as 'catastrophic,' worse than during the 2024 war. Lebanon's death toll reaches over 1,000, including at least 118 children and 40 health workers.
Sun, Mar 22, 2026
Moderate
Hezbollah rocket kills first Israeli since war began
A Hezbollah rocket attack on Misgav Am in northern Israel kills at least one person, marking the first Israeli death from fire originating in Lebanon since the US-Israel war on Iran began. Hezbollah claims it was targeting Israeli soldiers.
Sun, Mar 22, 2026
Major
Israel orders destruction of bridges over Litani River
Israeli Defense Minister Israel Katz orders the military to destroy all bridges over the Litani River in southern Lebanon, claiming they are used by Hezbollah for reinforcements. Israeli forces strike the Qasmiyeh Bridge, a key route linking southern Lebanon to the rest of the country, sparking fears of a full-scale ground invasion.
Sun, Mar 22, 2026
Major
Lebanese President warns of 'prelude to ground invasion'
Lebanese President Joseph Aoun calls the bridge strikes a 'prelude to ground invasion' and describes the bombing as 'collective punishment' and a 'flagrant violation of sovereignty.' The destruction of vital infrastructure intensifies fears that Israel intends to permanently isolate and depopulate southern Lebanon.
Sun, Mar 22, 2026
Moderate
Iran demonstrates long-range missile capability with Diego Garcia strike attempt
Iran launches two missiles toward the US-UK base on Diego Garcia in the Indian Ocean, approximately 3,800km away. Although the missiles fall short, the incident demonstrates Iran's long-range ballistic missile capabilities and willingness to target distant Western military installations.
Sun, Mar 22, 2026
Major
Israeli military chief announces expansion of Lebanon ground operations
Israeli Lieutenant General Eyal Zamir announces plans to expand ground operations in Lebanon against Hezbollah, warning the offensive 'has only just begun.' He describes operations as 'prolonged' and states Israel faces 'weeks' more fighting. This confirms fears of a major escalation in Lebanon.
Mon, Mar 23, 2026
Moderate
Lebanese PM reveals Iran commanding Hezbollah operations
Lebanese Prime Minister Nawaf Salam reveals that members of Iran's Revolutionary Guards are commanding Hezbollah's operations in Lebanon, directly linking the Lebanese front to Iran's broader conflict with the US and Israel. This admission highlights the regional nature of the conflict.
Mon, Mar 23, 2026
Major
Israel destroys five of six major bridges linking southern Lebanon
Israel bombs at least five of the six principal bridges across the river dividing southern Lebanon from the rest of the country. With over a million displaced and infrastructure systematically destroyed, fears grow that Israel intends to permanently depopulate the region. Human Rights Watch warns these tactics of mass expulsion may constitute war crimes.
Mon, Mar 23, 2026
Major
Analysts warn options for ending war narrowing as conflict continues
Despite US and Israeli claims of degrading Iran's military capacity, the conflict continues to escalate with no clear exit strategy. Iran shows no signs of backing down, while experts note that air power alone cannot achieve US objectives. The longer the war continues, the fewer options remain for de-escalation.
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