WWII Timeline By Aaron Wilkinson Sep 18, 1931 Japan invades Manchuria Oct 3, 1935 Fascist Italy invades, conquers, and annexes Ethiopia Oct 25, 1936 Nazi Germany and Fascist Italy sign a treaty of cooperation Nov 25, 1936 Nazi Germany and Imperial Japan sign the Anti-Comintern Pact Jul 1, 1937 Japan Invades China Mar 11, 1938 Germany incorporates Austria in the Anschluss Sep 29, 1938 Germany, Italy, Great Britain, and France sign the Munich agreement Mar 14, 1939 Slovaks declare their independence and form a Slovak Republic Mar 31, 1939 France and Great Britain guarantee the integrity of the borders of the Polish state Apr 7, 1939 Fascist Italy invades and annexes Albania Aug 23, 1939 Nazi Germany and the Soviet Union sign a nonaggression agreement Sep 1, 1939 Germany invades Poland Sep 3, 1939 Great Britain and France declare war on Germany. Sep 17, 1939 The Soviet Union invades Poland from the east Sep 27, 1939 Warsaw surrenders Nov 30, 1940 Soviet Union invades Finland Dec 7, 1941 Japan Attacks Pearl Harbor Jun 6, 1944 D-DAY May 1, 1945 Victory in Europe Aug 6, 1945 Atomic bombings of Nagasaki and Heroshima Sep 2, 1945 Japan Surrenders