Prelude to War: began as a training video for U.S. Troops compares the "free" world to the "slave" world--the dictatorships of Germany, Italy, and Japan. Used widely as a propaganda piece, the film endures as a study of how governments survive to justify wars to those who fight them. The Nazi strike: Capra's documentary depicts Germany's diplomatic and military betrayals leading up to the 1939 invasion of Poland and the events that finally led France...