| A | B |
| u-boat | German submarine used to fire torpedoes into ships, destroying them without warning |
| pacifists | people who are against war under any circumstances |
| Big Four | Britain, France, Italy, and the United States were known as the Big Four after the war. They made the big decisions at the peace conference. |
| propaganda | the spreading of ideas that help one cause and hurt another |
| armistice | a truce |
| Wilson's fourteen points | the things Wilson wanted to see in the treaty after WWI. He had fourteen points. |
| Treaty of Versailles | the treaty that ended WWI. |
| League of Nations | an international association of countries created to maintain peace among the nations of the world |
| alliances | the formation of military agreements among nations |
| imperialism | a nation's attempt to gain control of weaker nations by force to establish an empire |
| militarism | a nation's policy to maintain strong armed forces |
| nationalism | extreme loyalty to a nation and concern for its welfare |
| reparations | payment for war damages |