| A | B |
| alliances | an agreement between 2 or more countries to help each other out in war |
| diplomatic | conducting negotiations and relations between countries |
| Central Powers | in World War I the alliance of Germany and Austria-Hungary, Bulgaria and the Ottoman Empire allied in opposing the Allies |
| militarism | a policy of glorifying military power and keeping a standing army always prepared for war |
| Archduke Franz Ferdinand | heir to the Austria-Hungarian throne, was assassinated in Sarajevo, starting World War I. |
| Woodrow Wilson | President of the U.S. during World War I; attended the Paris Peace Conference at Versailles; author of the Fourteen Points plan for peace, which included the League of Nations |
| Kaiser Wilhelm II | leader of Germany during WWI |
| reparations | payment for damages after a war |
| League of Nations | An international organization formed in 1920 to promote cooperation and peace among nations; suggested in Wilson's Fourteen Points. |
| Tsar Nicholas II | Last emperor of Russia whose poor military and political decisions led to his downfall and Russia's loss in WWI |
| Bolshevik Revolution | 1917 uprising in Russia led by Vladimir Lenin which established a communist government and withdrew Russia from World War I. |
| Vladimir Lenin | Russian founder of the Bolsheviks and leader of the Russian Revolution and first head of the USSR (1870-1924) |
| Joseph Stalin | Russian leader who succeeded Lenin as head of the Communist Party and created a totalitarian state by purging all opposition (1879-1953) |
| New Economic Policy | Lenin's economy reform that re-established economic freedom in an attempt to build agriculture and industry. |
| Allied Powers | World War I alliance of Britain, France, and Russia, and later joined by Italy, the United States, and others. |