The Prague Spring & International Reactions
Opposition in Czechoslovakia
By the late 1960s, Czechoslovakia had been under rigid communist control for twenty years. The economy was stagnating, censorship was strict, and the secret police suppressed all dissent. Many Czechs and Slovaks resented Soviet interference and longed for greater freedom. In January 1968, the reformist leader Alexander Dubček was appointed as leader of the Czechoslovak Communist Party.
The Prague Spring (1968)
Dubček introduced a programme of reforms that became known as the Prague Spring. He wanted to create “socialism with a human face” — keeping communism but making it more humane. His reforms included relaxing censorship to allow greater freedom of speech, allowing other political parties to exist alongside the Communist Party, introducing elements of a market economy, and strengthening trade links with the West.
Unlike Nagy in Hungary (1956), Dubček did not try to leave the Warsaw Pact. He wanted to reform communism, not abandon it. Nevertheless, the Soviet Union saw his reforms as a dangerous threat that could spread to other satellite states.
The Soviet leader Brezhnev feared that if Czechoslovakia’s reforms succeeded, other satellite states would demand similar freedoms — a domino effect that could destroy Soviet control of Eastern Europe. East Germany and Poland, whose leaders were hardline communists, pressured Brezhnev to act. The USSR also worried that relaxed censorship would allow anti-Soviet ideas to spread, and that closer trade links with the West would pull Czechoslovakia out of the Soviet economic orbit.
The Soviet Invasion & the Brezhnev Doctrine
On 20–21 August 1968, around 500,000 Warsaw Pact troops from the USSR, Poland, Hungary and Bulgaria invaded Czechoslovakia. There was no armed resistance — Dubček ordered his people not to fight, knowing they could not win against overwhelming force. Instead, Czechs and Slovaks used passive resistance: they removed street signs to confuse invading troops, painted anti-Soviet graffiti, and argued with soldiers.
Dubček was arrested, taken to Moscow, and forced to reverse his reforms. He was eventually replaced by the hardliner Gustáv Husák, who restored rigid communist control. Around 100 Czechs and Slovaks were killed during the invasion, and over 300,000 people fled the country.
The Brezhnev Doctrine declared that the USSR had the right to intervene militarily in any socialist country where communism was threatened. It justified the invasion of Czechoslovakia and sent a clear warning to other satellite states: reform would not be tolerated.
International Reaction to the Soviet Invasion
As with Hungary in 1956, the Western response was limited to verbal condemnation. The USA was heavily involved in the Vietnam War and had no appetite for a direct confrontation with the USSR over Czechoslovakia. NATO condemned the invasion but took no military action. The United Nations debated the crisis, but the USSR used its veto to block any resolution.
However, the invasion had wider consequences. Communist parties in Western Europe, particularly in Italy and France, publicly criticised Moscow, weakening Soviet influence in the West. Romania and Yugoslavia refused to take part in the invasion, showing cracks in Soviet control. Albania left the Warsaw Pact entirely in protest.
Consequences of the Cuban Missile Crisis
The near-catastrophe of the Cuban Missile Crisis in 1962 had led both superpowers to take steps to reduce the risk of nuclear war. Several important agreements followed.
The Hotline
A direct communication link (teletype, not a red telephone) was established between the White House and the Kremlin. This meant the leaders could communicate instantly during a crisis, reducing the risk of miscalculation.
Limited Test Ban Treaty
The USA, USSR and Britain agreed to ban nuclear weapons testing in the atmosphere, underwater and in outer space. Underground testing was still allowed. This was the first significant arms control agreement of the Cold War.
Outer Space Treaty
Both superpowers agreed not to place nuclear weapons in space or on the moon. This prevented the arms race from extending beyond Earth.
Nuclear Non-Proliferation Treaty
Nuclear-weapon states agreed not to supply nuclear weapons to non-nuclear states. This aimed to prevent the spread of nuclear weapons to more countries.
In June 1963, President Kennedy visited West Berlin and delivered his famous “Ich bin ein Berliner” speech to a crowd of 450,000 people. He declared that the Berlin Wall proved the failure of communism: “Freedom has many difficulties and democracy is not perfect, but we have never had to put a wall up to keep our people in.” The speech was a powerful propaganda statement and a reassurance to West Berliners that the USA would not abandon them. It also had a broader significance — it demonstrated continued American commitment to Western Europe despite the improving relations after Cuba.