| A | B |
| Militarism | Building up of armies and weapons. |
| Archduke Francis Ferdinand | Assassinated in Sarajevo by a Serbian nationalist. |
| Central Powers | Included Germany ,Austria-Hungary ,Turkey and Bulgaria. |
| Allies | Included Russia, France,Britain and later the U.S. |
| Woodrow Wilson | President of the U.S. during World War I. |
| Propaganda | Used by the Allies to arouse anti-German feeling. |
| Lusitania | British passenger ship sunk by Germany killing 128 Americans. |
| Unlimited submarine warfare | A major reason the U.S entered the War. |
| Zimmerman telegram | Proposed alliance between Germany and Mexico. |
| Selective Service Act | Established the draft during Worls War I. |
| Food Administration | Boosted food production to supply the Allies . |
| Trench warfare | Type of fighting used in France during the War. |
| Treaty of Versailles | Officially ended World War I,not ratified by the U.S.Senate. |
| League of Nations | International peace-keeping organization created after World War I. |
| Wilson's Fourteen Points | Plan for peace that included self- determination. |
| Reparations | Money for war damages demanded of Germany after World War I. |