The Iran war exploded across multiple fronts on Sunday, March 22, as Tehran launched its eighth missile salvo of the day toward Israel, the Israeli military ordered the destruction of all bridges over Lebanon’s Litani River, and President Donald Trump’s 48-hour ultimatum to reopen the Strait of Hormuz began ticking down toward a Monday midnight deadline that could trigger strikes on Iran’s power grid.
Three weeks into Operation Epic Fury, the conflict that was supposed to be winding down is instead spiraling into the most dangerous escalation since the war began on February 28. Here’s everything you need to know about today’s developments.
Iran’s Relentless Missile Barrage: 8 Salvos in a Single Day
Iran fired its eighth missile salvo of the day at Israel on Sunday, according to the Times of Israel, marking one of the most intensive days of Iranian attacks since the war began. The strikes came from multiple directions, with Hezbollah simultaneously pounding northern Israel with rockets and drones.
The barrage follows Saturday night’s devastating strikes on the southern Israeli cities of Dimona and Arad — both located near Israel’s secretive nuclear research facility. At least 175 people were wounded, according to the deputy director of southern Israel’s main hospital. Israeli Prime Minister Benjamin Netanyahu called it a “miracle” that no one was killed.
Iran’s state media said the attacks on Dimona were a direct response to an earlier strike on Iran’s main nuclear enrichment site at Natanz. Iran’s parliamentary speaker Mohammad Bagher Qalibaf boasted that the strikes proved Israel’s air defenses had been penetrated near its most heavily protected area, calling it “a sign of entering a new phase of the battle.”
Israel Destroys Lebanon Bridges in ‘Prelude to Ground Invasion’
In a dramatic escalation of the war’s Lebanon front, Israeli Defense Minister Israel Katz on Sunday ordered the military to immediately destroy all bridges over the Litani River, which he said Hezbollah was using to move fighters and weapons into southern Lebanon. The Israeli military struck the Qasmiyeh bridge near Tyre after giving a one-hour warning, according to Reuters.
Katz also ordered the accelerated demolition of Lebanese homes in “frontline villages” near the Israeli border, a move that further isolates hundreds of thousands of Lebanese civilians from the rest of their country.
Lebanese President Joseph Aoun condemned the bridge strikes as “a prelude to a ground invasion,” raising fears that Israel is preparing to push deeper into Lebanon. Israel has already deployed two divisions to southern Lebanon as part of what it calls “limited and targeted ground operations” against Hezbollah.
Lebanese authorities say Israeli strikes have killed more than 1,000 people and displaced over 1 million since the war began. Hezbollah has fired hundreds of rockets into Israel, killing at least one civilian in the northern town of Misgav Am on Sunday — a 61-year-old farmer named Ofer “Poshko” Moskovitz, who just two days earlier told a radio station that living near the Lebanese border was like “Russian roulette.”
Trump’s 48-Hour Power Grid Ultimatum
The most explosive development of the weekend came Saturday night when President Trump issued a stark ultimatum on Truth Social: “If Iran doesn’t FULLY OPEN, WITHOUT THREAT, the Strait of Hormuz, within 48 HOURS from this exact point in time, the United States of America will hit and obliterate their various POWER PLANTS, STARTING WITH THE BIGGEST ONE FIRST!”
The deadline expires shortly before midnight GMT on Monday, March 24. National Security Advisor Mike Waltz reinforced the threat on Sunday, telling reporters the administration is serious about following through.
Iran has effectively shut down the Strait of Hormuz — through which roughly one-fifth of the world’s oil supply passes — by attacking shipping vessels and reportedly laying mines in the waterway. Nearly all tanker traffic has stopped, sending global energy markets into turmoil.
Iran’s response to Trump’s ultimatum was defiant. The IRGC declared that the Strait of Hormuz would be “completely closed” if the United States follows through on the power plant threat. Iran’s parliament speaker escalated further, warning that if Iranian power plants are hit, “vital infrastructure across the region — including energy and desalination facilities critical for drinking water in Gulf nations — would be considered legitimate targets and irreversibly destroyed.”
Qalibaf later added ominously that “entities that finance the US military budget are legitimate targets.”
Iran’s foreign minister Abbas Araghchi attempted to shift blame for the shipping crisis, writing on social media: “Ships hesitate because insurers fear the war of choice you initiated — not Iran.”
The Oil Crisis Deepens
Daily oil exports from the Middle East have fallen by at least 60 percent since the war began, according to the Institute for the Study of War (ISW). In a partial attempt to ease the crisis, the U.S. Treasury Department issued a short-term waiver on March 20 permitting the sale of Iranian oil already in transit — roughly 140 million barrels — but did not allow new purchases.
Treasury Secretary Scott Bessent emphasized that the United States would maintain maximum pressure on Iran’s access to the international financial system, limiting any revenue Tehran could generate from the sales.
A CBS News/YouGov poll released Sunday found deepening American opposition to the war, with two-thirds of Americans viewing it as a war of choice rather than necessity. Sixty percent disapprove of U.S. military action against Iran.
The Nuclear Shadow
Saturday’s exchange of strikes near both nations’ nuclear facilities has raised the stakes to a terrifying new level. Israel denied responsibility for hitting Natanz, while the International Atomic Energy Agency confirmed that the bulk of Iran’s estimated 441 kilograms of enriched uranium is buried beneath rubble at its Isfahan facility.
IAEA Director General Rafael Grossi told CBS News on Sunday that he has been “having important conversations” at the White House and with Iran about nuclear safeguards, but cautioned that “nothing can happen while bombs are falling.”
Israel is widely believed to possess nuclear weapons, though it maintains a policy of deliberate ambiguity. The fact that Iranian missiles successfully struck near Dimona — one of the most heavily defended areas on Earth — has rattled Israeli defense planners.
The Human Cost Mounts
The war’s death toll has surpassed 2,000, according to combined reporting from multiple sources. Iran’s health ministry reports over 1,500 killed, including from a hospital strike in Andimeshk. In Israel, 15 people have been killed by Iranian strikes, with dozens more killed in the occupied West Bank and Gulf Arab states.
A Qatari military helicopter crash on Saturday — blamed on a technical malfunction — killed all seven crew members aboard, adding to the sense that the entire region is being consumed by the conflict.
Iranian authorities have also arrested dozens of individuals across multiple provinces for allegedly spying for Israel, while the regime continues to crack down on civilian internet access, targeting individuals with Starlink devices and reducing VPN availability.
What Happens Next
The next 48 hours are critical. If Iran does not reopen the Strait of Hormuz by Monday night, Trump has committed to striking Iran’s power infrastructure — a move that would plunge tens of millions of Iranian civilians into darkness and could trigger Iran’s threatened retaliation against Gulf energy and water facilities.
Meanwhile, Israel’s destruction of Lebanon’s Litani River bridges suggests a major ground offensive may be imminent, opening yet another active front in a war that already stretches from Tehran to the Persian Gulf to the Mediterranean.
Netanyahu on Sunday urged the world to join the fight against Iran, claiming Israel and the U.S. were “well on their way” to achieving their war goals. But with 8 missile salvos hitting Israel in a single day, Hezbollah rockets raining on the north, the Strait of Hormuz closed, and oil exports down 60 percent, the war’s end seems nowhere in sight.
This is a developing story. Check back for updates as the 48-hour deadline approaches.