TEHRAN, Iran (AP) — The United States demanded Wednesday that Iran immediately reopen the Strait of Hormuz after the Islamic Republic closed the waterway in response to Israeli attacks against the Hezbollah militant group in Lebanon. Iran's move cast doubt over whether an already precarious ceasefire to end more than a month of war would hold. The United States and Iran both claimed victory after reaching the agreement, and world leaders expressed relief, even as more drones and missiles hit Iran and Gulf Arab countries.