Dec. 7, 1941. Tokyo sent mssg to Kurusu to tell him to break off negotiations at 1 pm. US intercepted mssg. Marshall was "horseback riding," so he could not be reached. telegraph sent to Pearl Harbor, did not reach until after attack. private called alert when he saw plane on radar, no one believed him. 7:55 AM Japan bombed the harbor, battleships, boats, planes and people destroyed. Next day, Congress declared war on Japan. 3 days later, Germany and Italy declared war on US.