Why We Fight: Prelude to War - WW2 Documentary Propaganda Film (1942) Why We Fight Part 2 - "The Nazis Strike" (1943) Why We Fight Part 3 - Divide and Conquer (1943) Why We Fight Part 4 - The Battle of Britain (1943) Why We Fight Part 5 - The Battle of Russia (1943) Why We Fight Part 6 - The Battle of China (1944) Why We Fight Part 7 - War Comes to America (1945)