| A | B |
| Nationalism | devotion to one's own country |
| Militarism | building up one's armed forces |
| Imperialism | making your country larger by gaining territories |
| Triple Alliance | Germany, Austria-Hungary, Italy |
| Triple Entente | France, Britain, Russia |
| Serbia | a nationalist from here started WWI |
| Italy | switched eides for promise of land |
| France | majority of fighting took place here |
| United States | remained neutral for most of WWI |
| Isolationism | Original American policy in WWI |