The Cold War (1945–1991)

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The Cold War (1945–1991) was the global geopolitical, ideological and economic confrontation between the United States and the Soviet Union and their respective allies. Although the two superpowers never fought each other directly, their rivalry shaped four decades of proxy conflicts, an arms race that produced over 70,000 nuclear warheads at its peak (1986), and a decisive intellectual battle between liberal democracy and Soviet socialism.

Containment

The American grand strategy, formulated by diplomat George F. Kennan in his "Long Telegram" (February 1946) and "Mr X" article in Foreign Affairs (July 1947), of resisting Soviet expansion through political, economic and military pressure short of war. It guided US foreign policy through every administration from Truman to Reagan.

Origins (1945–1947)

Tensions emerged immediately after victory in 1945. Stalin's consolidation of Soviet control over Eastern Europe contradicted the Yalta Conference (Feb 1945) commitments to free elections. Winston Churchill's "Iron Curtain" speech at Fulton, Missouri, on 5 March 1946 publicly identified the new divide. Major American responses:

Year	Initiative	Significance
1946	Long Telegram / "X" article (Kennan)	Theoretical basis of containment
1947	Truman Doctrine (12 March)	$400m aid to Greece and Turkey; pledge to support free peoples
1947	Marshall Plan (5 June)	$13bn European Recovery Program
1948	Berlin Blockade / Airlift (24 June 1948 – 12 May 1949)	First Berlin crisis
1949	NATO founded (4 April)	First peacetime US alliance
1949	Soviet atomic bomb (29 Aug); communist victory in China (1 Oct)	Cold War goes global

Korea and the new defence state (1950–1953)

The Korean War began with North Korea's invasion of South Korea on 25 June 1950. UN forces, three-quarters American, under General Douglas MacArthur landed at Inchon (15 September) and pushed to the Yalu, prompting Chinese intervention (October 1950). After Truman dismissed MacArthur on 11 April 1951, the war stalemated near the 38th parallel. The Armistice of 27 July 1953 signed at Panmunjom froze the division of Korea; about 36,000 Americans had been killed.

The Korean War quadrupled US defence spending and produced NSC-68 (April 1950), the strategic blueprint of containment. The era of Senator Joseph McCarthy's anti-communist hearings (1950–54) — the Red Scare — likewise reshaped American politics until McCarthy's censure by the Senate (2 December 1954).

Eisenhower and brinkmanship (1953–1961)

Dwight D. Eisenhower (1953–1961) ended the Korean War and pursued "Massive Retaliation" under Secretary of State John Foster Dulles. Major events:

1953 — CIA-backed coup overthrows Iran's Mossadegh.
1954 — Brown v. Board of Education outlaws school segregation (17 May).
1955 — Warsaw Pact founded; Geneva Summit.
1956 — Suez Crisis; Hungarian Revolution crushed by USSR.
1957 — Sputnik (4 October) launches the space race; Little Rock crisis.
1958 — National Aeronautics and Space Administration (NASA) created.
1959 — Cuban Revolution — Fidel Castro seizes power.
1960 — U-2 incident (1 May) wrecks Paris summit.

The Civil Rights Movement

Domestically the Cold War coincided with the Civil Rights Movement: the Montgomery Bus Boycott (1955–56) sparked by Rosa Parks; Brown v. Board (1954); Greensboro sit-ins (1960); Freedom Rides (1961); March on Washington (28 August 1963) with Martin Luther King Jr.'s "I Have a Dream"; the Civil Rights Act of 1964 and Voting Rights Act of 1965.

Kennedy, Cuba and Vietnam (1961–1968)

John F. Kennedy (1961–63) confronted three crises in rapid succession:

Bay of Pigs invasion (17–20 April 1961) — failed CIA-backed attempt to overthrow Castro.
Berlin Wall — built by East Germany on 13 August 1961.
Cuban Missile Crisis (16–28 October 1962) — the closest moment to nuclear war; resolved by Khrushchev's withdrawal of missiles in exchange for the secret removal of US Jupiter missiles from Turkey.

After Kennedy's assassination in Dallas on 22 November 1963, his successor Lyndon B. Johnson pursued the Great Society and dramatically escalated the war in Vietnam:

Gulf of Tonkin Resolution (7 August 1964) authorised broad military action.
US ground combat troops deployed from March 1965; reached 543,000 in April 1969.
Tet Offensive (30 January 1968) — strategic surprise that broke American political will.
US war dead totalled about 58,200.

The combined trauma of Vietnam, the assassinations of Martin Luther King (4 April 1968) and Robert F. Kennedy (5 June 1968), and the racial uprisings in northern cities produced the convulsive election of Richard Nixon (5 November 1968).

Key Points

12 March 1947 — Truman Doctrine.
4 April 1949 — NATO founded.
25 June 1950 — Korean War begins.
4 October 1957 — Sputnik launched.
13 August 1961 — Berlin Wall built.
22 November 1963 — JFK assassinated.
20 July 1969 — Apollo 11 lands on the Moon.
9 August 1974 — Nixon resigns over Watergate.
9 November 1989 — Berlin Wall falls.
26 December 1991 — Soviet Union dissolves.

Détente, Watergate and the Reagan revival (1969–1989)

Richard Nixon (1969–1974) and National Security Advisor Henry Kissinger pursued détente with the USSR and rapprochement with China (Nixon's visit, Feb 1972). The SALT I treaty (May 1972) and Anti-Ballistic Missile Treaty limited the arms race. US withdrawal from Vietnam was completed by the Paris Peace Accords (27 January 1973); Saigon fell on 30 April 1975.

Nixon's presidency ended in the Watergate scandal, after the discovery of an attempted break-in at the Democratic National Committee headquarters in the Watergate complex on 17 June 1972. Following the release of damning tape recordings, Nixon became the first US president to resign, on 9 August 1974. Gerald Ford succeeded him.

Jimmy Carter (1977–81) brokered the Camp David Accords between Egypt and Israel (17 September 1978), but his presidency was crippled by the Iran Hostage Crisis (4 November 1979 – 20 January 1981) and the Soviet invasion of Afghanistan (December 1979).

Reagan's renewed Cold War

Ronald Reagan (1981–89) revived containment through:

A doubling of defence spending and the Strategic Defense Initiative ("Star Wars", 1983).
Support for anti-Soviet insurgencies (Afghan mujahedin, Nicaraguan contras).
Branding the USSR the "evil empire" (1983).
Direct diplomacy with Mikhail Gorbachev at Geneva (1985), Reykjavik (1986) and Washington (1987), producing the Intermediate-Range Nuclear Forces (INF) Treaty of 8 December 1987 — the first treaty to eliminate an entire class of nuclear weapons.

End of the Cold War (1989–1991)

Gorbachev's reforms of glasnost (openness) and perestroika (restructuring) emboldened Eastern European revolutions:

Poland's Solidarity wins elections (June 1989).
Berlin Wall falls (9 November 1989).
Velvet Revolution in Czechoslovakia (Nov 1989); fall of Ceaușescu in Romania (Dec 1989).
German reunification (3 October 1990).
Operation Desert Storm / Gulf War (Jan–Feb 1991) — US-led liberation of Kuwait.
August coup against Gorbachev (19–22 August 1991) fails; Soviet Union dissolves on 26 December 1991 into 15 successor states.

For FPSC, three pairs anchor the Cold War: 1947/1989 (Truman Doctrine / fall of Wall); 1950/1973 (Korea / Vietnam end); 1962/1987 (Cuban Missile Crisis / INF Treaty). The 38th parallel (Korea) and 17th parallel (Vietnam) are favourite trick questions.

Aftermath

The end of the Cold War left the United States as the world's sole superpower — the "unipolar moment" famously identified by Charles Krauthammer (1990). The NATO expansion of 1999 and 2004, the rise of post-Cold-War terrorism culminating in 9/11, and the 21st-century re-emergence of great-power competition with China and Russia continue to be read in the long shadow of 1947–1991.