| A | B |
| Triple Entente | France, Great Britain and Russia |
| Triple Alliance | Germany, Austria-Hungary and Italy |
| Trench Warfare | armies dig in and fight each other, helped lead to the stalemate on the Western front in WWI |
| Schlieffen Plan | Germany's plan to defeat the French first and then move troops east to battle Russia |
| Treaty of Versailles | peace agreement signed that ended WWI and severely punished Germany |
| War Guilt Clause | Part of the Treaty of Versailles that placed sole responsibility for WWI on Germany |
| Fourteen Points | President Woodrow Wilson's plan for achieving a lasting peace after WWI |
| Fascism | political movement that promotes an extreme form of nationalism, a denial of individual rights and a dictatorial one-party rule |
| appeasement | making concessions to an aggressor in order to avoid war |
| totalitarianism | government control over every aspect of public and private life |
| Holocaust | the mass slaughter of Jews and other civilians carried out by the Nazis |
| Gestapo | German secret police |
| Kristallnacht | "Night of the broken glass", Nazi's attack Jewish businesses and synagogues in 1938 |
| Nuremberg Laws | these deprieved Jews of their rights to German citizenship and other rights |
| Genocide | the systematic killing of an entire people |
| Blitzkreig | lightening quick attack using airplanes and tanks followed by infantry forces |
| Collective farm | a large government-controlled farm formed by combining many small farms |
| Five-year plan | Stalin's idea for the development of the Soviet Union economy |
| Command economy | economic system in which the government makes all economic decisions |
| Soviet | local representative councils in Russia that included workers, soldiers and peasants |