| A | B |
| United Nations | Established a new peacekeeping organization made up of 50 countries. |
| Containment | A policy created by Truman, to stop the spread of Communism. |
| Iron Curtain | A line dividing Europe, between the UN and Communist conutries. |
| Cold War | A conflict between the U.S. and Russia in which neither nation never directly confronted the other on the battlefield. |
| Truman Doctrine | a statement made by Truman, that stated the U.S. would combat the spread of Communism in the world by any means. |
| The Marshall Plan | A proposal made by G. Marshall, that the U.S. should provide aid to all European nations that needed assistance. |
| Berlin Airlift | As an attempt to break the Berlin Blockade, U.S. flighters carried food, supplies, etc. into West Berlin |
| N.A.T.O. | North Alantic Treaty Organization, a defensive military alliance in Europe and the U.S. |
| Korean War | A War between North and South Korea, over the expansion of Communism. |
| 38th Parallel | The dividing line between Soviet Union North Korea and UN South Korea. |
| HUAC | House Un-American Activities Committee, investigated Communist influence in the movie industry. |
| Hollywood Ten | 10 men who refused to testify about Communism in the film industry, they were all sentenced to prison. |
| McCarthyism | J. McCarthy's attacks on suspected Communist in the U.S. |
| H-bomb | The Hydrogen Bomb, a destructive thermonuclear weapon. |
| CIA | Central Intelligence Agency, an organization that gather information about other countries. |
| Warsaw Pact | A military alliance system created ny Russia and 7 other European nations |
| Eisenhower Doctrine | A proposal made by President Eisenhower, that stated that the U.S. would defend the Middle East against any communist nation. |
| U-2 Incident | a group of U.S. military officials that were caught spying on Russia. |