WW2 By rachelgillcrist22 Sep 29, 1938 Munich Pact Aug 23, 1939 Molotov–Ribbentrop Pact Period: Jul 10, 1940 to Oct 31, 1940 Battle of Britain Mar 11, 1941 Lend- Lease Act Dec 7, 1941 Attack on Pearl Harbor Period: Aug 23, 1942 to Feb 2, 1943 Battle of Stalingrad