7-4.5 Summarize the causes and course of World War II, including drives for empire, appeasement and isolationism, the invasion of Poland, the Battle of Britain, the invasion of the Soviet Union, the Final Solution, the Lend-Lease program, Pearl Harbor, Stalingrad, the campaigns in North Africa and the Mediterranean, the D-Day invasion, the island-hopping campaigns, and the bombing of Hiroshima and Nagasaki.