World War II By Sekk Jan 30, 1933 Adolf Hitler becomes Chancellor of Germany 1937 Japanese invasion of Manchuria 1938 German Anschluss with Austria Sep 30, 1938 Treaty of Munich 1939 Hitler invades Czechoslovakia 1939 Britain rearms and reassures Poland 1939 Russia and Germany sign pact Sep 1, 1939 Hitler invades Poland Sep 3, 1939 Britain and France declare war on Germany 1940 Blitzkrieg Period: 1940 to 1940 Hitler invades Denmark and Norway May 15, 1940 Chamberlain resigns May 26, 1940 Dunkirk (Operation Dynamo) Jun 11, 1940 Italy enters war on side of Axis powers Jun 22, 1940 France signs armistice with Germany Period: Jul 10, 1940 to Oct 31, 1940 Battle of Britain