Summary
Highlights
The Cold War originated from ideological differences between the USA (capitalist democracy) and the USSR (communist dictatorship). Though temporary allies in WWII, tensions grew, especially after peace conferences like Tehran, Yalta, and Potsdam, which addressed post-war Germany and territorial changes. The US development and use of the atomic bomb, without Soviet consultation, further increased distrust and initiated the arms race.
George Kennan's 'Long Telegram' (1946) articulated the USSR as aggressive and expansionist, advocating containment. Nikolai Novikov's response telegram painted the US as desiring world domination. Soviet expansion into Eastern Europe, establishing communist governments, confirmed Western fears. Winston Churchill's 'Iron Curtain' speech (1946) symbolized the division between communist East and capitalist West.
The Truman Doctrine (1947) committed the US to containing communism. The Marshall Plan (1947) provided billions in economic aid to Western Europe to prevent the spread of communism and enhance capitalism's appeal. Stalin viewed this as 'dollar imperialism,' responding with Cominform (to control satellite states) and Comecon (economic aid). The formation of NATO (1949) by Western powers and the Warsaw Pact (1955) by the USSR solidified military alliances, increasing the risk of conflict.
In June 1948, Stalin initiated the Berlin Blockade, blocking access to West Berlin. The West responded with the Berlin Airlift (Operation Vittles), supplying West Berlin by air for 318 days. Stalin eventually ended the blockade in May 1949, demonstrating the West's resolve.
The arms race escalated with the development of hydrogen bombs by both the US (1952) and USSR (1953), and later ICBMs (1957), leading to the concept of Mutually Assured Destruction (MAD). Following Stalin's death in 1953, Khrushchev's 'de-Stalinization' policies inspired hope for reform. The Hungarian Uprising (1956) under Imre Nagy, who sought to leave the Warsaw Pact, was brutally suppressed by Soviet forces, with Nagy's execution serving as a warning.
In 1958, Khrushchev issued the Berlin Ultimatum, demanding Western withdrawal from Berlin. The flow of 2.7 million East German refugees to West Berlin caused a 'brain drain,' leading Khrushchev to construct the Berlin Wall in August 1961, a symbol of division until its fall in 1989. Several summits (Geneva, Camp David, Paris, Vienna) attempted to resolve the Berlin issue, but tensions remained high, exacerbated by the U2 spy plane incident.
The Bay of Pigs invasion (1961) was a US-backed failed attempt to overthrow Fidel Castro in Cuba. In response, Cuba sought Soviet protection, leading to the placement of Soviet missiles on the island. The discovery of these missiles in October 1962 triggered the 13-day Cuban Missile Crisis, bringing the world close to nuclear war. A naval quarantine by the US and secret negotiations led to the removal of Soviet missiles from Cuba in exchange for a US promise not to invade and the secret removal of US missiles from Turkey.
In Czechoslovakia, Alexander Dubček introduced reforms known as 'socialism with a human face' during the Prague Spring (1968). Leonid Brezhnev, fearing other Warsaw Pact countries would follow, invaded Czechoslovakia with 500,000 troops, restoring Soviet control. This led to the Brezhnev Doctrine, stating the USSR would intervene to maintain communist unity in the Eastern Bloc. The West condemned the invasion but did not intervene.
Both the US (due to the expensive Vietnam War) and USSR (due to a failing economy and fear of MAD) sought détente, a relaxation of tensions. Key agreements included SALT I (1972), limiting strategic arms, and the Helsinki Accords (1975), which addressed political, social, and economic cooperation, including human rights. However, détente ended with the Soviet invasion of Afghanistan in 1979.
The Soviet invasion of Afghanistan in December 1979 was seen by the US as expansionism, leading to the Carter Doctrine and a US boycott of the Moscow Olympics. Ronald Reagan, elected US president in 1980, took a more aggressive stance against the USSR, calling it an 'evil empire' (1983) and aiming to end communism rather than just contain it. His Strategic Defense Initiative (SDI), dubbed 'Star Wars' (1983), a proposed missile defense system, further pressured the USSR's already struggling economy.
Mikhail Gorbachev became the USSR leader in 1985 and implemented 'New Thinking' reforms: Glasnost (openness and less censorship) and Perestroika (economic restructuring with capitalist elements). He also reduced military spending and ended the Brezhnev Doctrine. A series of peace summits with Reagan and later George Bush (Geneva, Reykjavik, Washington, Moscow, Malta) led to improved relations and the INF Treaty (1987), abolishing intermediate-range nuclear forces. The collapse of communist regimes in Eastern Europe (1989-1991), signified by the fall of the Berlin Wall (1989), and Gorbachev's eventual resignation in December 1991, marked the official end of the Soviet Union and the Cold War.