Big Three: Leaders Franklin D. Roosevelt (U.S.), Winston Churchill (U.K.), and Joseph Stalin (USSR) who coordinated Allied strategies during WWII and discussed post-war plans.
Tehran Conference (1943): Meeting where the Big Three agreed on opening a second front against Nazi Germany and discussed post-war territorial arrangements.
Potsdam Conference (1945): Final meeting of the Big Three, where they negotiated terms for the end of WWII, including the administration of defeated Germany.
Harry Truman: 33rd U.S. President who authorized atomic bombs on Japan and established the Truman Doctrine to contain communism.
Cold War: Period of geopolitical tension (1947-1991) between the U.S. and the USSR, characterized by ideological conflicts, arms races, and proxy wars.
Dwight Eisenhower: 34th U.S. President who promoted the "domino theory" regarding the spread of communism and warned against the "military-industrial complex."
Self-determination: The principle that nations have the right to choose their sovereignty and political status without external interference.
Hydrogen Bomb: A thermonuclear weapon far more powerful than atomic bombs, developed by both the U.S. and USSR during the arms race.
Military-Industrial Complex: Term popularized by Eisenhower warning against the growing influence of the defense industry on government policy.
United Nations: International organization founded in 1945 to promote peace, security, and cooperation among nations.
Iron Curtain: Term coined by Churchill describing the division between Western democracies and Eastern communist countries during the Cold War.
Satellite Countries: Nations in Eastern Europe aligned with and under the influence of the Soviet Union.
World Revolution: Marxist concept advocating for the global overthrow of capitalism and the establishment of communism.
Containment: U.S. foreign policy aimed at preventing the spread of communism beyond its existing borders.
Truman Doctrine: Policy declaring U.S. support for countries threatened by communism, initially applied to Greece and Turkey.
Non-Aligned Movement: Group of states that chose not to align with either the U.S. or USSR during the Cold War, promoting independent paths.
Mutual Assured Destruction (MAD): Doctrine where both the U.S. and USSR possessed enough nuclear weapons to deter direct conflict.
Sputnik: First artificial Earth satellite, launched by the USSR in 1957, marking the start of the Space Race.
Marshall Plan: U.S. initiative providing economic aid to Western Europe to rebuild after WWII and prevent communist influence.
Council for Mutual Economic Assistance (COMECON): Soviet-led economic organization facilitating development in Eastern Bloc countries.
Proxy War: Conflicts where two opposing countries support combatants that serve their interests instead of waging war directly.
Berlin Airlift (1948-1949): U.S.-led operation supplying West Berlin by air after the Soviet Union blockaded land routes.
Berlin Wall: Barrier constructed in 1961 dividing East and West Berlin, symbolizing the Cold War’s division; it fell in 1989.
Domino Theory: Belief that the fall of one nation to communism would lead to the spread of communism to neighboring countries.
Bay of Pigs Invasion (1961): Failed U.S.-backed operation by Cuban exiles to overthrow Fidel Castro’s communist government.
Cuban Missile Crisis (1962): 13-day confrontation over Soviet missiles in Cuba, bringing the world close to nuclear war.
Angola: Southern African nation where Cold War superpowers intervened in its post-independence civil war.
Contra War: Conflict in Nicaragua where U.S.-backed Contras fought the socialist Sandinista government during the 1980s.
NATO (North Atlantic Treaty Organization): Military alliance formed in 1949 among Western nations to counter Soviet power.
Warsaw Pact: Military alliance of Eastern Bloc countries led by the USSR, established in 1955 as a counterbalance to NATO.
Communist Bloc: Group of socialist states under Soviet influence during the Cold War.
SEATO (Southeast Asia Treaty Organization): Alliance formed to prevent communism from spreading in Southeast Asia.
CENTO (Central Treaty Organization): Military alliance aimed at containing Soviet influence in the Middle East.
Nuclear Test Ban Treaty (1963): Agreement prohibiting nuclear weapon tests in the atmosphere, outer space, and underwater.
Nuclear Non-Proliferation Treaty (1968): Treaty aimed at preventing the spread of nuclear weapons and promoting peaceful nuclear energy.
Hotline: Direct communication link established in 1963 between the U.S. and Soviet leaders to reduce the risk of accidental war.
Antinuclear Weapons Movement: Social movements advocating against nuclear weapons testing and proliferation, especially after incidents like Chernobyl.
Douglas MacArthur: U.S. general who led UN forces in the Korean War but was dismissed by Truman for advocating the use of nuclear weapons against China.
Lyndon B. Johnson: U.S. President who escalated U.S. involvement in the Vietnam War through the Gulf of Tonkin Resolution.
John F. Kennedy: U.S. President during the Cuban Missile Crisis who promoted Cold War containment and the Space Race but was assassinated in 1963.
Nikita Khrushchev: Soviet leader who oversaw de-Stalinization, the Cuban Missile Crisis, and the early Space Race but was later removed from power.
Land Reform: Redistribution of agricultural land, often as part of socialist or communist policies, seen in China, Iran, and Latin America.
Commune: Large collective farm or community where property and labor were shared, notably implemented in China’s Great Leap Forward.
Theocracy: System of government where religious leaders rule in the name of a deity, such as Iran after the 1979 Islamic Revolution.
Mao Zedong: Communist leader of China who established the People's Republic in 1949 and launched the Great Leap Forward and Cultural Revolution.
Great Leap Forward (1958-1962): Mao Zedong's failed economic plan to industrialize China rapidly through collectivized agriculture, leading to famine.
Cultural Revolution (1966-1976): Mao’s campaign to purge capitalist and traditional elements from Chinese society, leading to widespread chaos and violence.
Red Guards: Radical youth groups mobilized by Mao during the Cultural Revolution to enforce communist ideology and attack perceived enemies.
White Revolution: Series of reforms by Iran’s Shah Muhammad Reza Pahlavi in the 1960s, including land redistribution and modernization, sparking opposition.
Muhammad Reza Pahlavi: Last Shah of Iran, backed by the U.S., whose modernization efforts led to unrest and his overthrow in the 1979 Islamic Revolution.
Mohammad Mosaddegh: Iranian Prime Minister who nationalized the oil industry but was overthrown in a CIA-backed coup in 1953.
Haile Selassie: Ethiopian emperor who modernized the country but was overthrown in 1974 during a Marxist revolution.
Mengistu Haile Mariam: Communist leader of Ethiopia after the 1974 revolution, responsible for mass killings and famine under his authoritarian rule.