World War II Timeline_Mhill By mikayla.hill1997 Aug 23, 1939 Non-Aggression Act Sep 1, 1939 Germany Invades Poland Period: Jul 10, 1940 to Oct 31, 1940 Battle of Britain Jan 10, 1941 Lend-Lease Act Period: Jun 2, 1941 to Jan 7, 1942 Operation Barbarossa Period: Aug 23, 1942 to Feb 2, 1943 Battle of Stalingrad Dec 16, 1944 Battle of the Bulge Period: Feb 19, 1945 to Mar 26, 1945 Battle of Iwo Jima May 8, 1945 Victory in Europe Day (V-E Day) May 14, 1955 Warsaw Pact