| A | B |
| Hague Tribunal | a world court to settle disputes between nations |
| Pan-Slavism | a form of nationalism in Russia saying that all Slavic peoples share a common nationality |
| Central Powers | Alliance between Germany and Austria-Hungary |
| Allies | alliance between France, Britain and Russia |
| Francis Ferdinand | archduke of Austria-Hungary who was assasinated in Sarajevo, his assasination led to the war |
| Gavrilo Princip | assasinated Francis Ferdinand |
| Schlieffen Plan | German armies invaded Belgium and planned to swing south behind French lines |
| Western Front | where armies burrowed into trenches from the Swiss Frontier to the English Channel |
| Verdun | where German forces tried to overwhelm the French an 11 month struggle that cost more than 1.5 million on both sides |
| Somme | where 60,000 British soldiers were killed/wounded in a single day in 5 months over 1 million were killed |
| Tannenberg | where Russia suffere one of the worst defeats of the war causing them to retreat. |
| Caporetto | where Austrians and Germans fought Italy and Italy suffered a severe loss |
| Gallipoli | Turkish troops trapped Allies on the beaches and after a year and more than 200,000 deaths, the Allies withdrew |
| T.E. Lawrence | led raids against the Turks and eventually the Ottoman empire lost a great deal of territory to the Arabs including Baghdad |
| Treaty of BrestLitovsk | signed by Lenin, ended Russian participation in World War I |
| Woodrow Wilson | US President who declared war on Germany |
| Lusitania | a British ship torpedoed by a German submarine where 128 Americans were killed |
| Fourteen Points | Woodrow Wilson's list of terms for resolving WWI and future wars |
| David Lloyd George | British Prime minister who attended the Paris Peace Conference |
| Georges Clemenceau | French leader who had a fierce anti-German war policy |
| League of Nations | Wilson's dream on the idea of collective security |
| Treaty of Versailles | a treaty drawn up by the Allies that forced Germany to assume full blame for causing the war |