German resentment over harsh peace terms leads to a rise in nationalist sentiment and the eventual rise to power of Adolf Hitler.
In this History Rewind video clip, take a step back in time to the beginning of World War 1. The repeated sinking of American ships caused the President to declare war. Watch the historic black and white footage of some of the attacks.
See the Spad 13 in action during World War I in this Dogfights video. The Spad 13 was one of the most successful aircrafts flying in the First World War, and it allowed the French and the Allies to compete with the Germans.
When Germany torpedoes a British passenger ship believed to be smuggling arms, anger at the resulting American deaths increases pressure on President Wilson to enter World War I.