Chronology of World War II By GEDWARDS Period: Jan 1, 1939 to Dec 31, 1945 Key events of World War II Sep 1, 1939 Germany invade Poland Sep 3, 1939 Great Britian and France declare war on Germany May 27, 1940 Evacuation at Dunkirk Jun 14, 1940 France falls Jul 2, 1940 Battle of Britian begins Jun 2, 1941 Germany invades Russia Dec 7, 1941 Japanese forces attack Pearl Harbour Mar 2, 1942 Singapore falls Jun 2, 1942 Battle of Midway May 17, 1943 Dam Busters mission Sep 2, 1943 Russians victorious at Stalingrad Jun 6, 1944 Allied forces land in Normandy May 8, 1945 VE Day Aug 6, 1945 Atomic Bomb dropped on Hiroshima