WW2 By ipeterson Sep 1, 1939 Germany Invades Poland Period: Sep 1, 1939 to Sep 2, 1945 World War 2 Sep 13, 1939 Soviet Union Invades Poland Apr 8, 1940 Germany Invades Poland May 10, 1940 Churchill Becomes Prime Minister/ Germany Invades Belgium Dec 7, 1941 Pearl Harbor Sep 8, 1943 Italy Surrenders to Allies Jun 6, 1944 D-Day May 8, 1945 Germany Surrenders Aug 6, 1945 Hiroshima Bomb Aug 9, 1945 Nagasaki Bomb