| A | B |
| Central Powers | fought AGAINST the allies in WWI; included Germany, Austria-Hungary, Turkey |
| Allied Powers | fought AGAINST the central powers in WWI; included England, France, Russia, and eventually the United States |
| Triple Alliance | secret alliance formed in Europe; included Germany, Austria-Hungary, Italy |
| Triple Entente | secret alliance formed in Europe; included England, France, and Russia |
| Woodrow Wilson | American President during WWI; wanted to keep the U.S. neutral and out of the war; established his 14 points which eventually became the League of Nations |
| Kaiser Wilhelm II | leader of Germany during WWI |
| Archduke Ferdinand | Prince of Austria-Hungary who was shot and killed by and individual from Serbia; this was one of the causes of the start of WWI. |
| Lusitania | British passenger ship that was sunk by a torpoedo shot off by German U-boats; 125 Americans were killed; this eventually caused the U.S. to enter WWI because Germany had not respected the U.S. declaration of neutrality. |
| Sussex Pledge | the promise that the Germans made to not sink any more ships without providing for the safety of the passengers. |
| Zimmerman Note | Stated that Germany was encouraging the government of Mexico to attack the United States. If Mexico agreed to do this, Germany guaranteed them the return of the American Southwest (California, Texas, New Mexico, etc.) Wilson was furious when this secret letter was turned over to him by British intelligence. |
| Armistice | 11am 11/11/1918; end of war |
| Treaty of Versailles | 1919 - forced Germany to admit it's guilt in causing the war, made Germany pay huge sums of money (reparations) for damages caused during the war, reduced the size of Germany, took away it's colonies, and said that it could not have any kind of army. |
| League of Nations | developed by Wilson; peace-keeping organization |
| Nationalism | intense pride in a national group (one that is similar in culture, language, religion, etc.) |
| Imperialism | when all powers were trying to outdo the others for trade and control of foreign territories. |
| Big Four | George Clemenceau, Vito Orlando, Llyod George, Woodrow Wilson |
| Wilson's Idealism | believed that he could make the world safe for democracy |
| Trench Warfare | fighting technique used during WWI; soldiers fought from deep ditches or trenches that had been dug into the ground |