| A | B |
| alliance | agreement between countries to help each other |
| Worl War I | 1914-1918 |
| Central Powers | alliance of Germany, Ausria-Hungary, Ottoman Empire |
| Allied Powers | alliance of Great Britain, Russia, France, United States |
| front | area where fighting takes place |
| neutral | not favoring any side |
| armistice | cease fire |
| League of Nations | international organization dedicated to peace |
| Treaty of Versailles | made Germany responsible for costs of the war |
| Franz Ferdinand | Archduke of Austria-Hungarian empire |
| Woodrow Wilson | American President during WWI |
| tsar | Russian emperor |
| abolish | end |
| Duma | Russian Parliament |
| Bolsheviks | Political party that brought communism to Russia |
| communism | land and businesses are controlled by the government |
| soviet | worker council |
| totalitarian | a dictator controls all aspects on people's lives |
| Nicholas II | last tsar of Russia |
| Lenin | leader of Bolshevik revolution |
| Josef Stalin | dictator of the Soviet Union |
| fascism | totalitarian government system |
| Nazi | National Socialist party of Germany |
| Axis | alliance of Germany, Italy, and Japan |
| Allies | alliance of Britain, France, Russia, and USA |
| concentration camp | Nazi prison for Jews and other groups |
| Holocaust | killing of Jewish populations during WWII |
| Winston Churchill | Britain's Prime Minister |
| Benito Mussolini | leader of Italy |
| Adolf Hitler | German dictator |
| Franklin Roosevelt | American President during WWII |
| iron curtain | imaginary division between eastern and western Europe |
| Cold War | struggle of words and ideas |
| NATO | alliance of Western Europe, Canada, and USA |
| arms race | competition for having the most nuclear weapons |
| Berlin Wall | division between communist East Berlin and "free" West Berlin |
| Fidel Castro | leader of communist Cuba |
| John F. Kennedy | American President during the Cuban Missile Crisis |
| Nikita Krushchev | Soviet Leader during the Cuban Missile Crisis |
| Mikhail Gorbachev | Soviet Leader who began "glasnost" |
| Boris Yeltsin | 1st president of the Russian Republic |