U.S.-Iran Ceasefire Collapses After Israeli Strikes in Lebanon

A tentative two-week ceasefire between the United States and Iran, brokered by Pakistan and other regional powers on April 7, 2026, collapsed following intense Israeli military operations in Lebanon. While the truce aimed to protect Iranian infrastructure and reopen the Strait of Hormuz, Israel continued its Operation Eternal Darkness against Hezbollah, killing over 250 people in Lebanon. This led Donald Trump and his administration to repudiate the deal after Iran declared the strikes a flagrant violation of the agreement.

In response to the collapse, Iran closed the Strait of Hormuz to all but its own vessels, reversing a previous limited opening that had been plagued by naval mines and transit tolls. The Islamic Revolutionary Guard Corps effectively halted oil traffic, leaving approximately 3,200 vessels idling. President Trump accused Iran of having no leverage other than the waterway and warned that U.S. warships were being reloaded with weaponry to strike Iran if peace talks failed.

Despite the tension, high-stakes negotiations were scheduled for April 11 in Islamabad, Pakistan, led by Vice President J.D. Vance. The U.S. demanded the surrender of highly enriched uranium, while Iranian officials, including Parliament Speaker Mohammad Bagher Qalibaf, insisted on a Lebanese ceasefire and the release of blocked Iranian assets as preconditions for talks.