WWII Timeline By mackie.conner Sep 1, 1931 Japan Seizes Manchuria Feb 1, 1933 Japan withdraws from the League of Nations Response: US threatens Japan with econminc Oct 1, 1933 Hitler pulls Germany out of League of Nations Jan 1, 1934 Hitler secrectly builds up Germany's army and weapons Jan 1, 1936 Hitler ordered troops into the Rhineland Feb 1, 1936 Hitler creates two alliances with Japan and Italy Jul 1, 1937 Contined expansion into China Mar 1, 1938 Hitler marches into to Austria Mar 1, 1939 Hitler invades Sudetenland, Czechoslovokia Sep 1, 1939 Germany invades Poland Sep 3, 1939 Britain and France declare war on Germany Period: Jul 10, 1940 to Oct 31, 1940 Battle of Britain Germany defeated in the air war Dec 1, 1941 Germany and the Axis powers declare was on the US Dec 7, 1941 Attack on Pearl Harbor by Japan Dec 8, 1941 US declares war on Japan Jun 6, 1944 D-Day