WORLD WAR II at a Glance By bridgetsnyder Sep 21, 1939 German forces invade Poland. May 30, 1940 Germany invades France. Dec 7, 1941 Japan attacks Pearl Harbor. Aug 30, 1942 The Battle of Stalingrad starts Jun 6, 1944 The Allies storm ashore at Normandy, France, on D-Day. Jun 30, 1944 Soviet troops discover an abandoned Nazi death camp. May 7, 1945 Germany formally surrenders. Aug 15, 1945 Japan Surrenders after the atomic bombs are dropped on Hiroshima and Nagasaki.