World War I

Militarism the belief or desire of a government or people that a country should maintain a strong military and be prepared to use it aggressively to defend or promote national interests. Alliances or agreements between government to fight together against any threats. Imperialism the economic and political dominance of a strong nation over other weaker nations. Nationalism the belief that people should value and hold their nation or country before anything also.

The United States was selling supplies to support the British war effort because of isolationismThe Lusitania was sunk on May 5, 1915 by a German U-boat. The Lusitania was a British passenger ship that had hundreds of U.S. citizens on board.

The assassination of King Franz Ferdinand forced Serbia's alliance partner Russia to declare war on Austria-Hungarian Empire. Which was one of the causes of WWI

WWI

The treaty of Versailles (1919) ended WWI and would require the Central Powers to pay hefty reparations to the Allies(Great Britain, Serbia, Russia, Italy, France, and etc.

U.S enters WWI