World War II Timeline By kaisediclawton Sep 18, 1931 Japanese first invade Northeastern China Period: Sep 18, 1931 to Aug 6, 1945 World War II Aug 2, 1939 Albert Einstein sends letter to US President Roosevelt describing potential for development of atomic bombs Sep 27, 1939 Germans first invade Poland May 10, 1940 Germany takes control of France Jun 10, 1940 Italians declare war on France and England Oct 12, 1940 Polish Jews are forced in enclosed ghetto in Warsaw Jun 22, 1941 Germany invades Soviet Union Dec 7, 1941 Japanese attack on Pearl Harbor Oct 30, 1942 British sailors capture code books on sinking German submarine U559 that helped break the Enigma cipher Nov 8, 1942 American and British troops invade North Africa Feb 2, 1943 The Battle of Stalingrad ends This is the event I am studying in Social Studies Jan 25, 1945 American troops defeat Germans in Battle of the Bulge in Belgium May 2, 1945 Soviet Army takes over Berlin Germany from Germans May 7, 1945 Germany surrenders Aug 6, 1945 Americans drop atomic bombs on Hiroshima and Nagasaki Sep 2, 1945 Japan surrenders