World War 2 Events By carsonkasper Sep 1, 1939 Germany Invades Poland Sep 3, 1939 Britain and France declare War on Germany Dec 7, 1941 Japan attacks U.S Naval Base (Pearl Harbor) Jun 6, 1944 Allies land in France (D-Day) Aug 6, 1945 U.S drops Atomic Bombs in Japan Sep 2, 1945 Japan surrenders, WW2 Ends