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US History: World War I

Research Tips

  • See the "Women" and "African American" pages for the military experiences of these specific populations

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Causes of World War I

Treaty of Versailles Ends World War I

German resentment over harsh peace terms leads to a rise in nationalist sentiment and the eventual rise to power of Adolf Hitler.

Germans Attack U.S. Navy Boats

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.

Dogfights: SPAD 13

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.

U-Boats sink the Lusitania in 1915

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.