| A | B |
| Bolshevik Party | Takes control of Russia during the war |
| conscription | draft |
| doughboys | nickname for Americans fighting in Europe |
| Fourteen Points | Wilson's Peace Plan |
| The Great War | World War I |
| League of Nations | Never joined by the U.S. |
| Henry Cabot Lodge | Republican opponent of Wilson |
| Lusitania | British oceanliner sunk by Germany |
| mobilization | Preparing for war |
| "He kept us out of war." | Wilson's campaign slogan |
| "Peace without Victory" | Wilson's view after the war |
| reparations | payments required of Germany to pay damages |
| trench | main type of warfare |
| Treaty of Versailles | Signed by European powers and Germany |
| Woodrow Wilson | Democratic President during WWI |
| Zimmermann Note | Germany asks Mexico to be an ally against the U.S. |
| 1914 | War starts in Europe |
| 1917 | U.S. joins the war |
| November 11,1918 | Armistice Day |
| Central Powers | Germany, Austria-Hungary, Turkey |
| Allied Powers | U.S., France, Great Britain, Russia |