Imperialism

Nationalism

Alliances

Archduke Assassination

Militarism

Wanting Justice

Increasing the support for the army

The Zimmerman Telegram

You were yanked out of your home into the war from the draft

Freedom of speech was limited because they didn't want people opposing the war/draft.

Espionage acts punished those who opposed the war or other foreign affairs and spoke out against the government.

American propaganda encouraged citizens not to talk bad about the war, which limited civil liberties such as freedom of speech because they no longer had the freedom to talk about whatever they wanted.

American Nationalism and militarism are connected. During the time of WW1, American's were very nationalistic and believed that their country was the best. This resulted in an increase in militarism because American's wanted to have the best military and fight for their country.