| A | B |
| United Nations (UN) | international organization of nations formed in 1945 to promote world peace; replaced the League of Nations |
| satellite nations | countries controlled by the Soviet Union |
| containment | U.S. strategy of the 1950s aimed at limiting the spread of communism |
| iron curtain | symbolic name of the border between Western Europe and the Communist bloc |
| Cold War | rivalry between the United States and the USSR after WW II |
| Truman Doctrine | U.S. policy to give financial and military aid to nations to resist communist rule |
| Marshall Plan | economic aid to Europe after WWII |
| Berlin airlift | 1948-49 rescue mission to drop supplies to West Berlin citizens during the Soviet blockade |
| North Atlantic Treaty Organization (NATO) | European and American defensive alliance formed in 1949 |
| Warsaw Pact | mutual defense agreement of the Soviet Union and its satellites; formed to counter NATO |
| Taiwan | the Republic of China (Nationalist China after 1949) |
| 38th parallel | dividing line between communist North Korea and the free-world South Korea |
| Seoul | the capital of South Korea |
| Inchon | site of a major amphibious landing by the Americans in Korea, a turning point in the war |
| House Unamerican Activities Committee (HUAC) | congressional committee that investigated Communist influence in the movie industry |
| Hollywood Ten | witnesses who refused to cooperate with HUAC |
| blacklist | a list of people who were supected by movie executives of having Communist ties |
| McCarthyism | unfair tactics of accusing people of disloyalty without evidence to support such claims |
| H-Bomb | thermonuclear weapon |
| brinksmanship | the willingness of the United States to go to the edge of all out war |
| Central Intelligence Agency (CIA) | spy agency of the United States |
| Eisenhower Doctrine | policy that the United States would defend the Middle East from attack by any Communist country |
| Hungarian uprising | revolt of Hungary against Soviet domination |
| U-2 incident | international incident caused by the shoot down of Francis Gary Powers's spy plane in 1960 |
| Potsdam Conference | final WW II meeting near Berlin in which it was clear that the Soviets were not going to abide by the Poland negotiations |
| Taiwan | island southeast of China; aka Republic of China; aka Formosa |
| armistice | temporary suspension of hostilities by agreement of warring parties; truce |
| truce | cease-fire; armistice |
| demilitarize | to remove or forbid military troops in an area |
| disarmament | reduction or limitation in the number of weapons of war |
| capitalism | economic system in which individuals own and control the factors of production |
| communism | economic system in which the government owns/controls almost all the means of production |
| subversive | an attempt to overthrow or cause the destruction of government |
| repatriate | to return to the country of birth, citizenship, or origin |
| covert | secret; disguised |
| U-2 | spy planes that flew at high altitudes to avoid detection |
| NATO | North Atlantic Treaty Organization |
| Berlin Wall | built in 1961 to divide Soviet-controlled East Berlin from democratic West Berlin |
| blockade | to forcibly prevent entry to an area |
| detente | a relaxing of tension, especially between nations, as by negotiations or agreements |
| nonalignment | a national policy repudiating political or military alliance with a world power |
| deterrence | maintenance of military power for the purpose of discouraging an attack |
| space race | competition between USSR and US regarding advancements in the space program |
| USSR | Union of Soviet Socialist Republics; aka Soviet Union |
| Sputnik | Soviet satellite put into orbit in 1957 (1st man-made satellite) |