The Cold War (US perspective)

From Alliance to Antagonism

The Cold War was the geopolitical and ideological contest between the United States and the Soviet Union from the end of World War II to the collapse of the USSR in December 1991. The wartime Grand Alliance dissolved over the political fate of Eastern Europe. At Yalta (February 1945) and Potsdam (July-August 1945), Stalin secured Soviet primacy in territories the Red Army occupied; Winston Churchill's "Iron Curtain" speech at Fulton, Missouri (5 March 1946) named the division.

The intellectual foundation of US policy was containment, articulated by George F. Kennan in the "Long Telegram" (February 1946) and the pseudonymous "X" article, The Sources of Soviet Conduct, in Foreign Affairs (July 1947). Kennan argued for the "patient but firm and vigilant containment of Russian expansive tendencies."

The Doctrine Becomes Policy

Containment was operationalized in rapid succession. The Truman Doctrine (12 March 1947) pledged support to Greece and Turkey against communist pressure, committing the US to aid "free peoples" resisting subjugation. The Marshall Plan (European Recovery Program, signed 3 April 1948) channeled roughly $13 billion to rebuild Western Europe and inoculate it against communism. When the Soviets blockaded West Berlin (June 1948-May 1949), the US and Britain answered with the Berlin Airlift.

The institutional capstone was the North Atlantic Treaty (4 April 1949), whose Article 5 made an attack on one member an attack on all. Domestically, the National Security Act of 1947 created the CIA, the National Security Council, and the Department of Defense. In 1950, the NSC's classified study NSC-68 recommended a massive military buildup and framed the conflict as global and existential. The fall of China to Mao Zedong (October 1949) and the Soviet atomic test (August 1949) intensified the alarm, helping fuel the domestic anticommunism associated with Senator Joseph McCarthy.

Hot Wars in a Cold Conflict

Containment turned kinetic in Asia. The Korean War (1950-1953) began when North Korea crossed the 38th parallel on 25 June 1950; Truman intervened under UN Security Council authorization (made possible by the Soviet boycott) without a congressional declaration of war, establishing a precedent for executive war-making. The armistice of 27 July 1953 restored the prewar division.

Vietnam became containment's costliest test. The Gulf of Tonkin Resolution (7 August 1964) gave President Johnson broad authority; US troop strength peaked near 540,000 in 1968. The Tet Offensive (January 1968) shattered public confidence, and the war's collapse culminated in the fall of Saigon (30 April 1975). The trauma produced the War Powers Resolution of 1973, passed over Nixon's veto, requiring presidential reporting and congressional authorization for sustained deployments.

The Nuclear Standoff and Crisis Diplomacy

The central feature distinguishing the Cold War from prior great-power rivalries was the nuclear balance of terror, codified in the doctrine of Mutual Assured Destruction (MAD). The most dangerous moment was the Cuban Missile Crisis (16-28 October 1962), when US reconnaissance discovered Soviet medium-range missiles in Cuba. President Kennedy imposed a naval "quarantine"; the standoff resolved when Khrushchev withdrew the missiles in exchange for a US pledge not to invade Cuba and the quiet removal of Jupiter missiles from Turkey. The crisis produced the Moscow-Washington hotline and the Limited Test Ban Treaty (5 August 1963).

The early 1970s brought detente. Nixon and Kissinger pursued triangular diplomacy, opening relations with China (Nixon's visit, February 1972) to pressure Moscow. The Strategic Arms Limitation Talks produced SALT I and the Anti-Ballistic Missile Treaty (26 May 1972). The Helsinki Accords (1 August 1975) recognized postwar borders while embedding human-rights commitments ("Basket III") that dissidents later wielded.

Renewed Confrontation and the End

Detente eroded after the Soviet invasion of Afghanistan (December 1979), prompting the Carter Doctrine (January 1980) declaring the Persian Gulf a vital US interest, and the US boycott of the 1980 Moscow Olympics. Reagan escalated rhetorically (the "evil empire" speech, 8 March 1983) and materially through a defense buildup and the Strategic Defense Initiative (announced March 1983). The Reagan Doctrine funded anticommunist insurgencies from Afghanistan to Nicaragua.

Mikhail Gorbachev's reforms—glasnost and perestroika—reframed the contest. The Intermediate-Range Nuclear Forces (INF) Treaty (8 December 1987) eliminated an entire class of missiles. Reagan's challenge at the Brandenburg Gate—"Mr. Gorbachev, tear down this wall!" (12 June 1987)—anticipated the fall of the Berlin Wall (9 November 1989). German reunification (1990), the collapse of Eastern European communist regimes, and the dissolution of the USSR on 26 December 1991 ended the conflict.

Why This Matters for the Exam

The FSOT US History/Society/Culture section, and the broader Job Knowledge Test's international affairs content, treat the Cold War as foundational to understanding contemporary US foreign policy and the institutions a Foreign Service Officer serves within. Expect multiple-choice items keyed to sequencing (Truman Doctrine before Marshall Plan before NATO) and to matching doctrines to presidents (Truman, Eisenhower's New Look/massive retaliation, Kennedy's flexible response, Nixon's detente, Carter, Reagan). High-yield retention: NSC-68, Article 5 of the North Atlantic Treaty, the War Powers Resolution of 1973, and the constitutional tension between executive war-making and Congress's Article I declaration power. The essay/structured-writing components reward candidates who connect containment's logic to its costs—Korea, Vietnam, McCarthyism—rather than reciting events.