Troops of the Warsaw Pact enter Prague to put an end to the Prague Spring. The Soviet Union feared that Prime Minister Alexander Dubcek's democratic reforms threatened the balance of power in Eastern Europe. Dozens of people were killed and several Czechoslovakian leaders were arrested.

Troops of the Warsaw Pact enter Prague to put an end to the Prague Spring. The Soviet Union feared that Prime Minister Alexander Dubcek's democratic reforms threatened the balance of power in Eastern Europe. Dozens of people were killed and several Czechoslovakian leaders were arrested.

Troops of the Warsaw Pact enter Prague to put an end to the Prague Spring. The Soviet Union feared that Prime Minister Alexander Dubcek's democratic reforms threatened the balance of power in Eastern Europe. Dozens of people were killed and several Czechoslovakian leaders were arrested.

Troops of the Warsaw Pact enter Prague to put an end to the Prague Spring. The Soviet Union feared that Prime Minister Alexander Dubcek's democratic reforms threatened the balance of power in Eastern Europe. Dozens of people were killed and several Czechoslovakian leaders were arrested.

Troops of the Warsaw Pact enter Prague to put an end to the Prague Spring. The Soviet Union feared that Prime Minister Alexander Dubcek's democratic reforms threatened the balance of power in Eastern Europe. Dozens of people were killed and several Czechoslovakian leaders were arrested.

Troops of the Warsaw Pact enter Prague to put an end to the Prague Spring. The Soviet Union feared that Prime Minister Alexander Dubcek's democratic reforms threatened the balance of power in Eastern Europe. Dozens of people were killed and several Czechoslovakian leaders were arrested.

Woman with a photograph of Alexander Dubcek and Ludvik Svoboda, after troops of the Warsaw Pact have entered Prague to put an end to the Prague Spring. The Soviet Union feared that Prime Minister Alexander Dubcek's democratic reforms threatened the balance of power in Eastern Europe. Dozens of people were killed and several Czechoslovakian leaders were arrested.

A silent protest on the day that troops of the Warsaw Pact have entered Prague to put an end to the Prague Spring. The Soviet Union feared that Prime Minister Alexander Dubcek's democratic reforms threatened the balance of power in Eastern Europe. Dozens of people were killed and several Czechoslovakian leaders were arrested.

Battling for Prague Radio in front of the Czechoslovak Radio building, after troops of the Warsaw Pact have entered Prague to put an end to the Prague Spring. The Soviet Union feared that Prime Minister Alexander Dubcek's democratic reforms threatened the balance of power in Eastern Europe. Dozens of people were killed and several Czechoslovakian leaders were arrested.

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