WWII By jhite Jul 29, 1921 Adolf Hitler becomes leader of National Socialist (Nazi) Party. Jan 30, 1933 Adolf Hitler becomes Chancellor of Germany. Jul 18, 1936 Civil war erupts in Spain. Sep 1, 1939 Nazis invade Poland. Sep 3, 1939 Britain, France, Australia and New Zealand declare war on Germany. Sep 5, 1939 United States proclaims its neutrality; German troops cross the Vistula River in Poland. Dec 14, 1939 Soviet Union expelled from the League of Nations. May 10, 1940 Nazis invade France, Belgium, Luxembourg and the Netherlands; Winston Churchill becomes British Prime Minister. May 26, 1940 Evacuation of Allied troops from Dunkirk begins. Jul 1, 1940 German U-boats attack merchant ships in the Atlantic. Jul 10, 1940 Battle of Britain begins. Sep 3, 1940 Hitler plans Operation Sea Lion (the invasion of Britain). Nov 5, 1940 Roosevelt re-elected as U.S. president. Mar 11, 1941 President Roosevelt signs the Lend-Lease Act. Dec 7, 1941 Japanese bomb Pearl Harbor; Hitler issues the Night and Fog decree. Dec 11, 1941 Hitler declares war on the United States. Oct 18, 1942 Hitler orders the execution of all captured British commandos. Jun 6, 1944 D-Day landings on the northern coast of France. May 8, 1945 V-E (Victory in Europe) Day. Sep 2, 1945 Japanese sign the surrender agreement; V-J (Victory over Japan) Day. Oct 16, 1946 Hermann Göring commits suicide two hours before his scheduled execution.