President Trump sent Congress formal notification dated July 10 that US hostilities against Iran resumed on July 7 after Iranian attacks on commercial vessels in the Strait of Hormuz. The letter, obtained by Reuters on July 13, cites protection of US national security interests and restarts a 60-day window for operations under the War Powers Act. Earlier events include US strikes alongside Israel beginning February 28, a ceasefire ordered April 7 and extended, and a memorandum of understanding signed June 17.