Cold War crises 1955-1968

The decade from 1955 to 1968 saw the Cold War reach its most dangerous flashpoints. CCEA Unit 2 Option A (International Relations 1945-2003) tests four major crises. Understanding them as a linked sequence — not isolated events — is what distinguishes the best answers.

Hungary 1956

In October 1956, Hungarians rose against Soviet rule. The revolt was triggered by Khrushchev's "de-Stalinisation" speech (1956), which had raised hopes of liberalisation. The Hungarian rebel government, led by Imre Nagy, announced Hungary would leave the Warsaw Pact and become neutral.

The Soviet response was brutal: on 4 November 1956, Soviet tanks crushed the uprising. An estimated 3,000 Hungarians were killed; Nagy was eventually executed (1958). Around 200,000 Hungarians fled to the West.

Why did the West not intervene? The US was distracted by the Suez Crisis (same month) and recognised that Hungary was firmly within the Soviet sphere of influence. The limits of the "rollback" policy became clear — containment, not liberation, was the reality.

The Berlin Wall (1961)

Berlin was divided between East and West. By 1961, approximately 3.5 million East Germans had fled to the West through Berlin — mostly skilled workers, a catastrophic "brain drain" for the GDR.

On 13 August 1961, the East German government (with Soviet backing) began building the Berlin Wall — initially barbed wire, soon concrete. The Wall sealed the border. It became the most potent symbol of the Iron Curtain.

Kennedy's response: Kennedy was privately relieved the Wall was "a wall, not a war." He visited West Berlin in 1963 and gave his famous "Ich bin ein Berliner" speech — affirming US commitment to West Berlin. The Wall stood until 9 November 1989.

The Cuban Missile Crisis (1962)

In October 1962, US U-2 spy planes discovered Soviet missile sites under construction in Cuba. President Kennedy faced a choice: blockade, air strike, or invasion.

He chose a naval quarantine (blockade) of Cuba, announced on 22 October 1962. For 13 days, the world stood on the brink of nuclear war. Soviet ships carrying further missiles approached the quarantine line.

The resolution: Khrushchev agreed to remove the Soviet missiles from Cuba in exchange for a US pledge not to invade Cuba (and a secret agreement to remove US Jupiter missiles from Turkey). Both sides stepped back.

Aftermath: A hotline was established between Washington and Moscow. The Limited Test Ban Treaty was signed in 1963. Both superpowers had been frightened by how close they came to nuclear war.

Czechoslovakia 1968 (Prague Spring)

In 1968, the Czechoslovak communist leader Alexander Dubcek introduced reforms — "socialism with a human face" — including freedom of the press, rehabilitation of political victims and loosening of travel restrictions.

On 20-21 August 1968, Soviet, Warsaw Pact troops invaded Czechoslovakia. Dubcek was removed. The "normalisation" of Czechoslovakia under Gustav Husak reversed the reforms.

The Brezhnev Doctrine: Leonid Brezhnev declared the USSR had the right to intervene in any socialist country where "socialism" was threatened. This doctrine justified Soviet interventions in the Eastern Bloc.

Western response: Condemnation but no military action — the same pattern as Hungary 1956. The USA was deeply engaged in Vietnam and could not risk confrontation with the USSR in Europe.

Significance — connecting the crises

All four crises illustrate the same fundamental tension of the Cold War: both superpowers wanted to extend their influence and protect their sphere, but both feared that direct confrontation would lead to nuclear war. The crises of this period revealed that the "balance of terror" — Mutually Assured Destruction — was actually stabilising, even as individual events seemed terrifyingly dangerous.