In early 1939, before WWII had begun, America was a young and successful nation that did not want to go to war. Fast forward five years and America would emerge not only with one of the world's strongest armies, but as a leading power on the world stage. Directed by Frank Capra this episode of Why We Fight was one in a series of propaganda films aimed at US soldiers, teaching them about the reasons they were fighting and why they could not afford to lose this war.