| A | B |
| sabotage | Secret action by enemy agents to damage a nation’s war efforts. |
| mobilization | Gathering resources and preparing for war. |
| autocracy | Government in which one person has unlimited power. |
| dissent | Disagreement with or opposition to an opinion. |
| propaganda | Ideas or information designed and spread to influence opinion |
| entente | An understanding between nations. |
| pacifist | Person opposed to the use of war or violence to settle disputes. |
| nationalism | Loyalty to a country and promotion of its interests above all others. |
| armistice | Temporary peace agreement to end fighting |
| League of Nations | Association of nations to preserve peace and resolve international disputes. |
| espionage | Act of spying. |
| front | Region where warfare is taking place. |
| militarism | Buildup of military strength within a country |
| reparations | Payment by the losing country to the winner for damages caused during a war. |
| ethnic group | Minority that speaks a different language or follows different customs than the majority in a country. |
| convoy | Group that travels with something, such as a ship, to protect it. |
| fourteen points | Wilson's peace plan to end World War I and restructure the countries of Europe. |
| alliance | Defense agreements among nations. |
| balance of power | Distribution of power among nations so no one single nation can dominate or interfere with another. |
| socialist | Person who believes industries should be publicly owned and run by the government rather than. |