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100

Information which is used to influence public opinion for or against a cause

propaganda

100

aggressive builds-up of armed forces to intimidate and threaten other nations

militarism

100

U-Boats

German Submarines 

100

Intense pride in a person's homeland

nationalism

100

Message from Germany to Mexico promising them the American Southwest for their alliance

Zimmermann Note

200

Germany's plan to invade France required movement of troops across the neutral country of

Belgium

200

Germany's agreement to stop sinking merchant ships with its U-boats

Sussex Pledged

200

Made any public expression of opposition to the war illegal

Sedition Act of 1918

200

Created to coordinate the production of war materials

War Industries Board

200

Used to raise money to cover the costs of war

Liberty Bonds

300

African American leaving the south to settle in the Northern Front

Great Migration

300

Spying to acquire governments secrets 

espionage

300

Method by Which the selective service drafted American men

lottery

300

To conserve energy, the Fuel Administration introduced

daylight saving time

300

Wartime fears led to the mistreatment and persecution of

German Americans

400

Realizing a draft was necessary, Congress created a new system of conscription called

selective service

400

military branch authorizing the enlistment of women

Navy

400

Small faction of the Russian social democrat Party later known as Communist

Bolsheviks

400

payment of war Damages

reparations

400

The space between opposing trenches 

"no-man's-land"

500

Central Powers

German, Austria-Hungary the Ottoman Empire, and Bulgaria

500

Triple Entente 

Great Britain, France, and Russia

500

African American units that fought along the western front

92nd and 93rd Infantry Divisions

500

Commander of the American force

General John J. Pershing

500

First use of airplanes during WW1

Observe enemy activities

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