World War II significant events By muncyboi Sep 27, 1940 Japan enters World War II Sep 13, 1941 Battle of the Atlantic Dec 7, 1941 Japan attacks US- Pearl Harbor Dec 7, 1941 Battle of Pacific Theatre Dec 8, 1941 Battle of Wake Island May 4, 1944 Battle of the Tennis Court Jun 6, 1944 Western Front Jun 21, 1944 Battle of Guam May 1, 1945 Battle of Okinawa Aug 9, 1945 Soviet-Japanese War
