A second commercial vessel was attacked by Iranian drone in the Strait of Hormuz on June 27-28, 2026, prompting the U.S. military to conduct retaliatory airstrikes on Iranian targets over consecutive nights at Trump's direction. The strikes are testing the fragile ceasefire that has held since the U.S.-Israel war on Iran began in late February 2026, with each side responding to the other's attacks in an escalating cycle. Iran's new Supreme Leader Mojtaba Khamenei (selected after his predecessor was killed in an airstrike in February) has accused the U.S. of violating agreements, while the Trump administration views the drone strike as a breach of the informal truce.