| A | B |
| Pancho Villa | - leader of Mexican guerilla group |
| Guerrillas | armed band that carries out surprise attacks and sabotage rather than open warfare |
| Nationalism | an intense pride in one’s homeland |
| Self- determination | the idea that people who belong to a nation should have their own country and government |
| Franz Ferdinand | the heir o the Austro-Hungarian throne |
| Allies | the alliance for France, Russia, great Britain and Italy in world war 1 |
| Central powers | the alliance of Germany Austria Hungary the Ottoman Empire and Bulgaria in world war 1 |
| Propaganda | information designed to influence opinion |
| Contraband | prohibited materials |
| U-boat | German submarines |
| Sussex pledge | German promise not to sink merchant ships without warning |
| Zimmermann telegram | letter sent by a German official to Mexico asking Mexico to ally itself with Germany against the united states in exchange for regaining its territories lost earlier to the U.S |