WWII By Zach Kleckner Sep 15, 1939 Germany invades Poland May 13, 1940 Churchill become UK prime minister Sep 20, 1940 Japan joins Axis powers Oct 20, 1940 battle of Britain ends with Hitler's forces rebuffed Jun 22, 1941 Germany invades Soviet Union Oct 20, 1941 Hideki Tojo becomes Japanese prime minister Dec 7, 1941 Japan attacks Pearl Harbor Jun 4, 1942 Americans destroy four Japanese aircraft carriers in Battle of Midway Jan 20, 1943 Americans win Battle of Guadalcanal Feb 20, 1943 soviets defeat Germany in Battle of Stalingrad Jul 10, 1943 Allies invade Sicily Jun 6, 1944 Allies launch invasion of France Apr 30, 1945 hitler commits suicide in Berlin Aug 15, 1945 Japanese surrender after bombing of Hiroshima and Nagasaki