| A | B |
| pacifism | opposition to all war |
| militarism | glorification of the military |
| entente | nonbinding agreement to follow common policies |
| ultimatum | final set of demands |
| mobilize | prepare military forces for war |
| neutrality | policy of supporting neither side in a war |
| stalemate | deadlock in which neither side is able to defeat the other |
| no man's land | empty tract of land where everything has been destroyed by war |
| zeppelin | large, gas filled balloon |
| U-boat | submarine |
| convoy | group of merchant ships protected by warships |
| total war | channeling of a nation's entire resources into a war effort |
| conscription | "the draft" which required all young men to be ready for miliary or other services |
| propaganda | spreading of iedeas to promote a certain cause or to damage an opposing cause |
| atrocity | brutal act committed against innocent people |
| self-determination | right of people to choose their own government |
| armistice | agreement to end fighting in a war |
| pandemic | spread of a disease across a large area, country, continent, or the entire world |
| reparations | payment for war damages or damages caused by imprisonment |
| collective security | system in which a group of nations acts as one to preserve the peace of all |
| mandate | after WWI, a territroy that was administered by a western power |