World War II Top 10 Events By lacey_bradshaw01 Jan 30, 1933 Hitler becomes chancellor May 1, 1937 Neutrality Act passed Feb 20, 1938 Hitler clams support for Japan May 14, 1938 Mussolini joins Hitler May 15, 1939 Hitler annexes Czechoslovakia Aug 23, 1939 Stalin and Hitler sign the Nonaggression Pact Sep 1, 1939 Germany invades Poland 1940 Fleet is moved to Pearl Harbor Dec 7, 1941 Pearl Harbor Japan bombed Pearl Harbor, Hawaii USA Apr 12, 1945 FDR dies Apr 28, 1945 Mussolini dies May 2, 1945 Germany surrenders Aug 6, 1945 Hiroshima Sep 2, 1945 World War II ends