Japan was heavily involved in several major battles in WWII. They attacked Pearl Harbor in 1941, crippling the US Pacific fleet. This brought the US into the war. Japan fought battles to take islands like Iwo Jima and Guadalcanal for their strategic value. The US ultimately defeated Japan at the Battle of Midway in 1942. Japan also committed major atrocities, such as the Rape of Nanking where 300,000 Chinese civilians and soldiers were killed. Japan's involvement in WWII ended with its surrender after the atomic bombings of Hiroshima and Nagasaki in 1945.