WWII By Kit-Katz Sep 1, 1939 Germany Invades Poland and Starts WWII Period: Sep 1, 1939 to May 8, 1945 WWII Sep 3, 1939 Great Britin and France Declare War on Germany Jun 10, 1940 Italy Enters the war Sep 27, 1940 Germany, Italy, and Japan sign Tripartite Pact Mar 1, 1941 Bulgaria joins the Axis Dec 7, 1941 Japan Bombs Pearl Harbor Dec 8, 1941 US Joins WWII Us signs Decleration of War Dec 11, 1941 Nazi Germany and its Axis powers declare war on US Oct 23, 1942 Britiash troops defeat Germany and Italy Apr 30, 1945 Hitler commits suicide May 7, 1945 Germany surrenders to Western Allies Aug 6, 1945 US drops atomic bomb on Hiroshima. Aug 9, 1945 US drops atomic bomb on Nagasaki Sep 2, 1945 Japan surrenders, ending WWII