The suppression of Poland's Solidarity movement was an assertion of

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The suppression of Poland's Solidarity movement was an assertion of the Brezhnev Doctrine, which stated that the Soviet Union had the right to intervene in the affairs of any communist country to protect socialism. The Soviet-led Warsaw Pact was also involved in the suppression, but it was ultimately a demonstration of the Brezhnev Doctrine. Glasnost, on the other hand, was a policy of openness and transparency introduced by Mikhail Gorbachev in the 1980s, which represented a departure from the Stalinist era.

The Suppression of Poland's Solidarity Movement Was an Assertion of