Incident
Soviet-led invasion of Czechoslovakia is followed by the return of government press controls
Soviet-led Warsaw Pact troops invaded Czechoslovakia on August 20-21, 1968 to end the Prague Spring, a period of liberalization under Alexander Dubček that had included the lifting of press controls. In the invasion's aftermath, the new leadership reimposed government controls of the press.1
What happened
Czechoslovakia's Communist Party leadership under Alexander Dubček had eased government control of the press during the reform period known as the Prague Spring, which began in January 1968 and let newspapers report and comment with unusual openness for the Eastern Bloc. On the night of August 20 into August 21, 1968, the Soviet Union led Warsaw Pact troops, the alliance of the Soviet Union and its Eastern European allies, into Czechoslovakia to reverse the reforms. Soviet forces occupied radio and television facilities and other key installations as they entered Prague. In the weeks and months that followed, the country's new leadership, under continued Soviet pressure, reestablished government controls of the press and reimposed controls that had briefly been lifted, part of a broader process Czechoslovaks came to call normalization, which culminated in Dubček's replacement by Gustáv Husák in April 1969.123
What reason was given
Stated justificationSoviet and allied leaders described the invasion as necessary to defend socialism in Czechoslovakia against what they called counter-revolutionary tendencies, a framing used to justify reversing the press freedoms of the Prague Spring.123
What changed for reporting
Newspapers, radio and television that had reported with unusual openness during the Prague Spring came back under formal government press controls within weeks of the invasion, ending the brief period of liberalized coverage.2
Timeline
1968
Who acted
| Name | Role in this incident | Office at the time |
|---|---|---|
| Alexander Dubček | other | First Secretary of the Communist Party of Czechoslovakia |
Sources
Claims and evidence
Each numbered claim quotes the source it rests on.
- The Soviet Union led Warsaw Pact troops into an invasion of Czechoslovakia on August 20, 1968 to reverse the Prague Spring's reforms in Prague.
On August 20, 1968, the Soviet Union led Warsaw Pact troops in an invasion of Czechoslovakia to crack down on reformist trends in Prague.
Soviet Invasion of Czechoslovakia, 1968 archived copy, Office of the Historian, United States Department of State.Claim 165, checked 2026-09-22. - Czechoslovakia's new leadership reestablished government censorship and controls preventing freedom of movement in the invasion's aftermath.
the new leadership reestablished government censorship and controls preventing freedom of movement
Soviet Invasion of Czechoslovakia, 1968 archived copy, Office of the Historian, United States Department of State.Claim 166, checked 2026-09-22. - The Prague Spring was a brief period of economic and political liberalization in Czechoslovakia under Alexander Dubček that began in January 1968 and effectively ended when Soviet forces invaded on August 20, 1968.
brief period of economic and political liberalization in Czechoslovakia under Alexander Dubček that began in January 1968 and effectively ended on August 20, 1968, when Soviet forces invaded
Prague Spring, Encyclopaedia Britannica.Claim 167, checked 2026-09-22.