| A | B |
|---|
| Triple Alliance | Austria-Hungary, Germany, and Italy in the late 1800s |
| Triple Entente | Britain, France, Russia |
| Archduke Franz Ferdinand | Heir to the throne of Austria-Hungary, assisinated June 28, 1914, lit the European poweder keg |
| Central Powers | Austira-Hungary and Germany, later jined by Bulgaria and Ottoman Empire |
| Allied Powers | Britain, France, Russia, and later joined by the U.S. and Italy |
| Wilhelm II | Leader of Germany |
| Trench Warfare | WWI military strategy of defineding a position by fighting from the protection of deep ditches |
| U-Boats | German submarines |
| Lusitania | British passenger liner sunk by German U-Boat, caused the death of 128 Americans |
| Zimmerman Note | Telegram sent by Germany's foreign minister to Mexico during WWI proposing an alliance |
| Liberty Bonds | U.S. bonds sold during WWI to raise money for loans to the Allies |
| Treaty of Brest-litovsk | Peace agreemetn between the Central Powers and Russia that removed Russia from WWI |
| Fourteen Points | President Wilson's plan for organizing post WWI Euripe and for avoiding future wars |
| Self-determination | Right of people to decide their own political status |
| League of Nations | International congress of nations formed in 1919 that was designed to settle disputes and maintain peace and collective security |
| Treaty of Versailles | Treaty ending WWI that required Germany to pay billions of dollars of war costs and established the League of nations |
