Dissent was to be repressed both within the USSR and in Eastern Europe, and force would be used, if necessary, to keep countries in the Soviet orbit.
These policies initially backfired, and between 1964 and 1968 there were movements in most of Eastern Europe demanding changes in leadership and policies.
Such movements always existed among the intellectual class, nut continued economic deprivation and lack of consumer goods led the working class to join these movements.