WWII Timeline By apratt27 Jan 30, 1933 Hilter becomes Chancellor Oct 3, 1935 Mussolini Invades Ethiopia May 1, 1937 Neutrality Act is passed May 14, 1938 Mussolini Joins Hitler May 17, 1938 Naval Expansion Act Sep 12, 1938 Hitler Aims for Sudetenland Sep 29, 1938 Hitler Promises Peace Mar 15, 1939 Hitler Annexes Czechoslovakia Aug 23, 1939 Stalin and Hitler Sign Nonaggression Pact Sep 1, 1939 Germany invades Poland Sep 3, 1939 Britain and France Declare War Jun 10, 1940 Italy Attacks France No specific date in April, just some Jun 22, 1940 France Surrenders Sep 25, 1940 U.S. Extends Japanese Embargo Sep 27, 1940 Japan Joins Axis Mar 30, 1941 U.S. Seizes Axis Ships Dec 7, 1941 Bombing of Pearl Harbor Jun 6, 1944 D-Day May 8, 1945 Victory in Europe Sep 2, 1945 Japan surrenders