World War 2 By Bomb9 Sep 18, 1931 Japan invades Manchuria Period: Sep 18, 1931 to Sep 2, 1949 World War 2 Sep 17, 1939 The Soviet Union invades Poland The Soviet Union invades Poland Apr 9, 1940 Germany invades Denmark, Denmark surrenders Jun 10, 1940 Italy enters the war Sep 27, 1940 Germany,Italy, and Japan sign the Tripartite act Dec 7, 1941 Japan bombs Pearl Harbor Apr 30, 1945 Hitler commits suicide May 9, 1945 Germany surrenders to soviet union Aug 6, 1945 U.S. drops atomic bombs on Hiroshima Aug 9, 1945 The USA drops an atomic bomb on Nagasaki
