| A | B |
| nationalism | a feeling of intense loyalty to a country or group |
| militarism | celebration of military ideals, and a rapid buildup of military power |
| alliance system | a system in which countries agree to defend each other |
| balance of power | an equality of power among different countries that discourages any group from acting aggressively |
| stalemate | a situation in a conflict in which neither side can make progress against the other |
| U-boat | a German submarine |
| propaganda | information used to influence opinion |
| autocracy | a government in which one person with unlimited power rules |
| convoy | a group of ships that escort and protect other ships |
| kaiser | German emperor |
| mobilization | the gathering of resources and troops in preparation for war |
| ration | to limit use |
| socialist | a person who believes industries should be publicly owned |
| pacifist | a person who is opposed to the use of violence |
| dissent | disagreement or opposition |
| national self-determination | the right of people to decide how they should be governed |
| reparation | payment for damages caused during a war |