In the history of Czechoslovakia, normalization (Czech: normalizace, Slovak: normalizácia) is a name commonly given to the period 1969–87. It was characterized by initial restoration of the conditions prevailing before the reform period led by Alexander Dubček (1963/1967 – 1968), first of all, the firm rule of the Communist Party of Czechoslovakia, and subsequent preservation of this new status quo.
"Normalization" is sometimes used in a narrower sense to refer only to the period 1969 to 1971.
The official ideology of normalization is sometimes called Husakism after the Czechoslovak leader Gustáv Husák.
When Gustáv Husák replaced Alexander Dubček as leader of the KSČ in April 1969 after the military intervention of Warsaw Pact armies, his regime acted quickly to "normalize" the country's political situation. The chief objectives of Husák's normalization were the restoration of firm party rule and the reestablishment of Czechoslovakia's status as a committed member of the socialist bloc. The normalization process involved five interrelated steps:
Within a week of assuming power, Husák began to consolidate his leadership by ordering extensive purges of reformists still occupying key positions in the mass media, judiciary, social and mass organizations, lower party organs, and, finally, the highest levels of the KSČ. In the fall of 1969, twenty-nine liberals on the Central Committee of the KSČ were replaced by conservatives. Among the liberals ousted was Dubček, who was dropped from the Presidium (the following year Dubček was expelled from the party; he subsequently became a minor functionary in Slovakia, where he still lived in 1987). Husák also consolidated his leadership by appointing potential rivals to the new government positions created as a result of the 1968 Constitutional Law of Federation (which created the Czech Socialist Republic and the Slovak Socialist Republic).