| A | B |
| Great Britain, France, Russia, United States | Allies |
| Germany, Turkey, Austria-Hungary | Central Powers |
| Germany, Austria, Italy | Triple Alliance |
| Entente Cordiale | Russia, France |
| Triple Entente | Great Britain, France, Russia |
| pacifism | opposition to war |
| Aletta Jacobs | argued women could prevent war by voting |
| Alsace Lorraine | French provinces captured by Germany |
| Hague Tribunal | a world court with no power |
| Bismarck | Predicted Great war would start in east |
| Pan-Slavism | Promoted Slavic people as one nation |
| Austria-Hungary Ottoman Turkey | feared nationalism might create rebellion |
| 1905 and 1911 | Moroccan crises between France and Germany |
| glorification of the military | militarism |
| Social Darwinsim | justified war to develop the strong |
| Naval Arms Race | Rivalry between Great Britain and Germany |
| Bosnia-Herzogovina | Where Austrian royal was assassinated |
| Francis Ferdinand | His assassination sparked Balkan Powder Keg |
| "Place in the Sun" | Kaiser Wilhelm demanded this for Germany |
| Gavrilo Princip | Assassinated Archduke Ferdinand |