The document summarizes key events of World War II from 1939-1945. It discusses Hitler making demands on Poland which led to Britain and France pledging to defend Poland. It also discusses the non-aggression pact between Hitler and Stalin and their secret agreement to divide Eastern Europe. It then outlines Germany's invasion of Poland on September 1st 1939 and their quick defeat of Poland using blitzkrieg tactics. Germany then defeated France using similar tactics, occupying two-thirds of Northern France.