WW2 By jvtpearson Period: Oct 1, 1935 to Sep 1, 1939 Pre War Conflict Sep 1, 1939 German invades Poland Sep 3, 1939 War Breaks Out in Europe- France and United Kingdom declare war on Germany Dec 7, 1941 Attack on Pearl Harbor Jun 6, 1944 D-Day- Invasion of Normandy Aug 1, 1945 Atomic Bombs dropped on Hiroshima and Nagasaki Sep 2, 1945 War ends- Japan signs surrender documents