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Cold War
a period of ideological, geopolitical, and economic struggle between the U.S. (capitalism) and the USSR (communism) following WWII.
United Nations
an international organization founded on October 24, 1945, immediately following World War II to prevent future global conflicts, promote international security, and foster cooperation.
Soviet satellite (buffer) states
Eastern European nations (e.g., Poland, East Germany, Hungary) occupied by the Red Army after WWII and forced into communist, Moscow-aligned governments.
Churchill's "Iron Curtain" speech
declared that an ideological and physical boundary had descended across Europe, dividing Soviet-controlled Eastern Europe from Western democracies. It is a pivotal early Cold War event marking the shift from alliance to hostility with the USSR.
containment/Truman Doctrine
the official application of the containment policy, pledging U.S. military and economic aid to any nation resisting communist aggression, primarily aimed at Greece and Turkey. As a cornerstone of early Cold War strategy, it shifted the U.S. from isolationism to actively preventing the spread of Soviet influence.
Marshall Plan
a US initiative prompted by Secretary of State George Marshall that provided over $12 billion in economic aid to rebuild Western Europe after World War II. It aimed to stabilize economies, prevent the spread of communism, and create trading partners.
Berlin Airlift
a major Cold War crisis where the U.S. and allies flew supplies into West Berlin, bypassing a Soviet ground blockade.
NATO (North Atlantic Treaty Organization)
a mutual defense alliance established by the US, Canada, and Western European nations to combat Soviet expansion during the Cold War.
Warsaw Pact
a Soviet-led military and political alliance comprising Eastern European communist nations (satellite states), created as a direct counterweight to NATO.
Arms Race (for atomic weapons)
a cold war competition (roughly 1945–1990) between the United States and the Soviet Union to develop, produce, and stockpile superior atomic weapons and delivery systems. It was defined by intense rivalry, massive military spending, the development of hydrogen bombs, and the doctrine of Mutually Assured Destruction (MAD).
Chinese civil war
a conflict between the ruling Nationalist Party (Kuomintang/KMT) led by Chiang Kai-shek and the Chinese Communist Party (CCP) led by Mao Zedong. It shaped Cold War dynamics by resulting in a 1949 Communist victory, the creation of the People's Republic of China, and the Nationalist retreat to Taiwan.
Chiang Kai-shek/ Nationalists
from 1928 to 1949, focusing on unifying China and opposing communism. Supported by the U.S. as a World War II ally, his corrupt, authoritarian government was defeated by Mao Zedong’s Communists in 1949, forcing him to flee to Taiwan.
Mao Zedong/Communists
the leader of the Chinese Communist Party (CCP) who defeated Nationalist forces in 1949, establishing the People's Republic of China (PRC).
Korean War
a major Cold War proxy conflict initiated when Soviet-backed North Korea invaded South Korea. The U.S., leading a United Nations coalition under the policy of containment, defended South Korea to prevent the spread of communism, resulting in a stalemate that affirmed the division at the 38th parallel.
Dwight D. Eisenhower
(34th U.S. President, 1953–1961) was a moderate Republican, former WWII Supreme Allied Commander, whose presidency was defined by Cold War "containment," the "New Look" policy (nuclear brinkmanship), and domestic prosperity. He emphasized "dynamic conservatism," built the Interstate Highway System, and warned against the "military-industrial complex."
John Foster Dulles and "brinkmanship"
Eisenhower’s Secretary of State (1953–1959), implemented a Cold War foreign policy defined as pushing the Soviet Union to the verge of nuclear war to force concessions without actually engaging in conflict. This aggressive strategy relied on "massive retaliation" to contain communism, rather than conventional military engagement.
Nikita Khrushchev
the Soviet Premier who led the USSR from 1953 to 1964, following Stalin’s death. Known for his "de-Stalinization" policies (the "Thaw") and "peaceful coexistence" theory, he paradoxically escalated Cold War tensions through the 1962 Cuban Missile Crisis, the Berlin Wall's construction, and the Sputnik launch.
Hungarian Revolt, 1956
a spontaneous nationwide uprising against Soviet-imposed communist rule in Hungary. Students and workers demanded democracy and neutrality, briefly installing a reformist government under Imre Nagy. The Soviet Union brutally crushed the revolt with tanks on November 4.
Sputnik
the first artificial Earth satellite, launched by the Soviet Union, triggering the Space Race and the Sputnik crisis in the U.S. As the first major milestone in space technology, it ignited Cold War fears of Soviet military superiority, leading to the creation of NASA and increased federal funding for STEM education through the National Defense Education Act
National Defense and Education Act
a landmark federal law passed in response to the Soviet launch of Sputnik (1957). It authorized over $1 billion to improve education in science, mathematics, and foreign languages, aiming to strengthen national security by fostering STEM talent and expanding federal involvement in education
NASA (National Aeronautics and Space Administration)
the federal agency responsible for U.S. civilian space exploration and aeronautics research. Created as a direct response to the Soviet Union’s launch of Sputnik.
U-2 Incident
a major Cold War crisis where the Soviet Union shot down a U.S. U-2 spy plane, piloted by Francis Gary Powers, over Soviet airspace on May 1, 1960. It forced the U.S. to admit to aerial espionage, caused the collapse of the Paris Summit with Nikita Khrushchev, and severely damaged U.S.-Soviet relations.
Fidel Castro/Communist takeover of Cuba
a Cuban revolutionary who overthrew the U.S.-backed dictator Fulgencio Batista on January 1, 1959, establishing a communist state. His nationalization of American-owned industries led to severe U.S.-Cuba tensions, prompting the failed 1961 Bay of Pigs invasion and the 1962 Cuban Missile Crisis
military-industrial complex
the close, symbiotic relationship between a nation’s military, defense contractors, and government, popularized by President Eisenhower’s 1961 farewell address.
John F. Kennedy
the 35th US president, known as the youngest elected (age 43) and first Catholic. His administration, the "New Frontier", focused on civil rights, space exploration, and economic reforms. Key events included the Bay of Pigs, Cuban Missile Crisis, Berlin Wall, and initiating the Peace Corps, before his 1963 assassination.
Bay of Pigs Invasion
a failed CIA-backed invasion of Cuba by exiles aimed at overthrowing communist leader Fidel Castro. Authorized by President Kennedy, the botched mission embarrassed the U.S., strengthened Castro’s rule, and pushed Cuba closer to the Soviet Union, directly paving the way for the 1962 Cuban Missile Crisis.
Berlin Wall
a fortified concrete barrier built by East Germany (with Soviet support) to divide East and West Berlin, preventing East Germans from fleeing to the democratic West. It became the preeminent symbol of the Cold War and the "Iron Curtain," representing ideological division between democracy and communism, with its 1989 fall signaling the end of Soviet dominance.
Cuban Missile Crisis
a 13-day standoff between the US and USSR, marking the closest the world came to nuclear war during the Cold War. After the US discovered Soviet nuclear missiles in Cuba, President Kennedy ordered a naval blockade, leading Khrushchev to remove them, easing tensions and creating a direct "hot line".
Nuclear Test Ban Treaty
a Cold War agreement between the US, USSR, and UK banning nuclear tests in the atmosphere, underwater, and in outer space. Signed after the Cuban Missile Crisis, it reduced environmental radiation, helped initiate detente, and was a key early arms control agreement.
Second Red Scare
a period of intense anti-communist paranoia in the U.S. driven by Cold War tensions, Soviet expansion, and fear of domestic subversion.
Loyalty Review Board
a federal program established during the Second Red Scare to investigate U.S. government employees for communist ties or "subversive" affiliations. Its purpose was to identify potential risks, requiring oaths and, if needed, firing workers to counteract Cold War-era fears of Soviet espionage.
HUAC (House Un-American Activities Committee)
a US House of Representatives committee (1938–1975) that investigated alleged disloyalty and communist infiltration in American government and society, particularly during the early Cold War. It is best known for fueling the Second Red Scare through aggressive, high-profile investigations and blacklisting, most notably in Hollywood.
Alger Hiss
a high-ranking U.S. State Department official accused in 1948 of being a Soviet spy, whose 1950 perjury conviction epitomized the Second Red Scare. Prosecuted by HUAC (including Richard Nixon) following accusations by Whittaker Chambers regarding "Pumpkin Papers," His case fueled anti-communist hysteria and convinced many that the U.S. government was infiltrated by Communists.
Julius & Ethel Rosenberg
American citizens executed in 1953 for conspiring to pass atomic secrets to the Soviet Union, serving as a landmark case of the early Cold War and Second Red Scare.
Joseph McCarthy/ McCarthyism
the intense anti-communist paranoia in the US, spearheaded by a Senator of the same name. It is characterized by reckless, unsubstantiated accusations of disloyalty, blacklisting, and witch-hunts that crippled reputations and stifled dissent during the Cold War
Servicemen's Readjustment Act of 1944 (GI Bill)
a landmark U.S. law providing WWII veterans with education, training, unemployment insurance, and housing/business loans. It facilitated the post-war transition to civilian life, fueled the growth of the middle class, and accelerated the postwar economic boom
baby boom
a dramatic post-World War II surge in U.S. birth rates, resulting in over 76 million babies being born, following soldiers' return and economic prosperity.
Levittown/suburbs
postwar suburban housing developments built by William Levitt (starting in 1947) that utilized mass-production techniques to create affordable, identical homes for veterans. As a symbol of the 1950s "American Dream," it was characterized by white-only racial discrimination and strict conformity
Sun Belt
the southern and southwestern U.S. states—stretching from Florida to California—that experienced massive population growth, economic expansion, and increased political influence following World War II. Driven by a warm climate, defense jobs, and lower taxes
Taft-Hartley Act of 1947
a federal law passed over President Truman’s veto that significantly restricted the power of labor unions, marking a shift toward conservative labor policy. It outlawed "closed shops," permitted "right-to-work" laws, and required non-communist oaths for union leaders
Dixiecrats
a breakaway faction of Southern white conservative Democrats in 1948 who opposed President Truman’s civil rights agenda. Led by Strom Thurmond, they aimed to preserve racial segregation and "states' rights" against federal intervention. Their revolt highlighted rising racial tensions within the Democratic Party.
Truman's "Fair Deal"
an ambitious set of domestic proposals aiming to expand New Deal reforms, including expanding Social Security, raising the minimum wage, creating national health insurance, and enacting civil rights legislation
Interstate Highway System
a landmark infrastructure project signed into law by President Eisenhower via the Federal-Aid Highway Act of 1956. It authorized 41,000 miles of expressways designed to enhance national defense, stimulate the post-WWII economy, and accelerate suburbanization
Kennedy's "New Frontier"
ambitious domestic and foreign policy agenda aimed at transforming the US through liberal reform, space exploration, and economic growth. It focused on tackling poverty, improving education, strengthening civil rights, and launching the Apollo space program to counter Soviet influence
Television
the rapid post-WWII (post-1945) proliferation of TV sets, which became a dominant cultural and political force by 1960. It revolutionized American life by standardizing consumer culture, spreading suburban values, and influencing public opinion regarding political events and social movements
rock-and-roll music
a 1950s musical genre, originating from African American rhythm and blues, which became a defining, rebellious feature of post-WWII youth culture. It bridged racial divides by popularizing Black music among white teenagers and served as a catalyst for social change, non-conformity, and consumerism.
Elvis Presley
a transformative 1950s American singer known as the "King of Rock and Roll" who revolutionized popular music by blending African American rhythm and blues with white country and gospel.
The Affluent Society
term coined by economist John Kenneth Galbraith to describe the post-World War II United States, characterized by unprecedented private wealth, consumerism, and economic growth. While many enjoyed new luxury goods and suburban life, the era was critiqued for neglecting public sector investment (schools, infrastructure) and ignoring significant poverty.
Beatniks
a 1950s youth subculture and literary movement (the "Beat Generation") that rejected 1950s conformity, consumerism, and suburban materialism.
Allen Ginsberg/"Howl"
a seminal Beat Generation poem, serving as a raw, controversial outcry against 1950s American conformity, materialism, and repression.
Kennedy assassination
The November 22, 1963, assassination in Dallas, Texas, by Lee Harvey Oswald was a pivotal 1960s event. It created national shock, elevated Lyndon B. Johnson to the presidency, and led to the Warren Commission report. It fueled conspiracy theories and altered the trajectory of civil rights legislation and Vietnam policy.
"silent generation"
the cohort of Americans born between approximately 1928 and 1945. In AP US History (APUSH), this generation is defined by coming of age during the Great Depression and World War II, and reaching maturity during the conformist, prosperous, and anti-communist atmosphere of the 1950s.