| A | B |
| Allies | those fighting for the Triple Entente(France, Russia, Great Britain) and Italy(1915) & US |
| Central Powers | those fighting for the Triple Alliance(Germany, Austia-Hungary) and the Ottoman Empire and Bulgaria |
| contraband | prohibited materials |
| Treaty of Brest-Litovsk | treaty between Russia and Germany(that was seperate from the Treaty of Versailles) where Russia lost the Ukraine, Polish and Baltic territories, & Finland but Germany agreed to leave the remaining Russian lands |
| reparations | payment by the losing country in a war to the winner for the damages caused by the war |
| conscription | forced military service |
| League of Nations | member nations would help preserve peace and prevent future wars by pledging to respect and protect each other's territory and political independence(promote peace in the world) |
| armistice | a temporary agreement to end fighting |
| Red Scare | fear that Communists or "reds" might sieze power caused this nationwide panic |
| communism | a theory advocating elimination of private property and goods are owned in common(available for all) |
| War Industries Board | coordinate the production of war materials |
| propaganda | information designed to influence opinion |
| war bonds | sold the American people by the government and the government agreed to repayhe money with interest in a specified number of years |
| self-determination | idea that people who belong to a nation should have their own country and government |
| Black Hand | a Serbian nationalist group of which the assassin of Archduke Ferdinand was a member |
| Sussex Pledge | a promise made by Germany that it promised with certain conditions not to sink anymore merchant ships without warning |
| Vladimir Lenin | leader of the Bolshevik Party that became the Communist leader in Russia that pulled Russia out of the war |
| espionage | spying to acquire secret government information |
| Marshall Ferdinand Foch | the Supreme commander of the Allies(a French commander) and ordered massive counterattacks along the front during the Battle of the Argonne Forest |