 Khrushchev introduced the de-Stalinisation of the party and of the Soviet Union.He realised this with the dismantling of the Gulag archipelago of forced-labour camps and freeing the prisoners as well as allowing Soviet civil society greater political freedom of expression, especially for public intellectuals of the intelligentsia such as the novelist Aleksandr Solzhenitsyn, whose literature obliquely criticised Stalin and the Stalinist police state.De-Stalinization also ended Stalin's national-purpose policy of socialism in one country and was replaced with proletarian internationalism, by way of which Khrushchev re-committed the Soviet Union to permanent revolution to realise world communism.