Policy of not taking sides in the conflict in Europe.

German submarines

Fight on the French and German boundary.

New and strange method of fighting.

Germany promised not to sink any more ocean liners without prior warning or providing help to passengers.

Ended WWI with provisions that were considered very harsh on Germany and other defeated countries.

Considered a major turning point in WWI, Germany was defeated.

American fighting force in WWI led by John J. Pershing.

Provision of the Versailles Treaty which made Germany pay for damages caused during the war.

Secret message from German foreign Minister to Mexico, promising to return lost territories to Mexico in exchange for alliance.

Made it a crime to criticize American involvement in European conflict.

Attempted to remain neutral, but eventually he was forced to ask Congress for a declaration of war on Europe.

Supreme Court ruling limiting free speech when it poses a “clear and present danger”.

British passenger ship was sunk by German submarine killing over 1000 people including 128 Americans.

Proposed by Wilson before the end of WWI as the basis for the peace in Europe include a plan for the League of Nations.

Policy after WWI of separating from affairs of other countries and turning their backs to Europe.