The document discusses key events of World War 2 in Europe and Asia. It describes Germany's invasion of Poland in 1939 which marked the start of the war, as well as Germany's swift defeat of France in 1940 through the use of blitzkrieg tactics. It also discusses the Holocaust and the systematic murder of 6 million Jews by Nazi Germany. The summary ends with the Allied invasion of Normandy on D-Day in 1944 and Hitler's failed counteroffensive which marked the beginning of the end for Nazi Germany.