WW2 timeline By manjotlma Sep 3, 1939 Britain and France declare war on Germany Sep 19, 1939 Germany invades Poland Jun 18, 1940 Soviet Union occupy a Baltic states Jul 1, 1940 Germany begins bombing London Apr 27, 1941 Greece surrenders Dec 7, 1941 Japanese attack on pearl harbour Dec 8, 1941 U.S. A Declares war on Germany Sep 3, 1943 Italy surrenders to Britain Jun 6, 1944 D-day and Normandy invasion Aug 6, 1945 Hitler commits suicide Aug 6, 1945 USA dropped on japan Aug 9, 1945 USA drops second atomic bomb on japan Sep 2, 1945 Japanese surrender to British