World War 2 By alexusharden Sep 18, 1931 Japan invades Manchuria Period: Sep 18, 1931 to Sep 2, 1945 WWII Oct 2, 1935 Fascist Italy invades, conquers, and annexes Ethiopia ended around May 1936 Oct 25, 1936 Nazi Germany and Fascist Italy sign a treaty of cooperation; on November 1, the Rome-Berlin Axis is announced Ended November 1, 1936 Nov 25, 1936 Nazi Germany and Imperial Japan sign the Anti-Comintern Pact Jul 7, 1937 Japan invades China Sep 29, 1938 Germany, Italy, Great Britain, and France sign the Munich agreement 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 Ended April 15, 1939 Aug 23, 1939 Nazi Germany and the Soviet Union sign a nonaggression agreement Sep 1, 1939 Germany invades Poland, initiating World War II in Europe Sep 17, 1939 The Soviet Union invades Poland from the east Apr 9, 1940 Germany invades Denmark and Norway Until June 9, 1940 Jun 10, 1940 Italy enters the war Jul 10, 1940 The air war known as the Battle of Britain ends in defeat for Nazi Germany Until October 31, 1940 Sep 27, 1940 Germany, Italy, and Japan sign the Tripartite Pact Dec 7, 1941 Japan bombs Pearl Harbor Apr 30, 1945 Hitler commits suicide May 7, 1945 Germany surrenders to the western Allies May 9, 1945 Germany surrenders to the Soviets Aug 6, 1945 The United States drops an atomic bomb on Hiroshima Aug 9, 1945 The United States drops an atomic bomb on Nagasaki Sep 2, 1945 Japan formally surrenders, ending World War II