World War II Timeline By m.r.777888 Nov 9, 1938 Kristallnacht happens in Germany Sep 1, 1939 Germany invades Poland, starting WWII. Jul 10, 1940 Battle of Britain Jun 22, 1941 Operation Barbarossa, Germany invades Russia Dec 7, 1941 Japan bombs American Naval base at Pearl Harbor Dec 8, 1941 The US declares war on Japan Apr 9, 1942 Bataan Death March Jun 7, 1942 U.S. defeats Japanese Navy at battle of Midway Feb 2, 1943 Russia repels German invasion at Battle of Stalingrad Jun 6, 1944 Allied troops land on the beaches of Normandy Jan 16, 1945 Germany is defeated in the Battle of the Bulge Aug 6, 1945 Nuclear bomb dropped on Hiroshima, Japan, by U.S. Air force.