An overview of his functions:
Under Communism the Czechoslovakian economy in the 1960s was in serious decline and the imposition of central control from Prague disappointed local Communists while the de-Stalinization program caused further disquiet. In October 1967 a number of reformers took action, they challenged First Secretary Antonin Novotny at a Central Committee meeting. Novotny failed to secure support from either his fellow Communists or from Moscow and was forced to resign, Dubcek became the new First Secretary on January 5, 1968. The period from March to August 1968 is termed the Prague Spring, Dubcek attempted to liberalise the government and allow "socialism with a human face".
Dubček was careful enough to attempt to reassure the Soviets that he was still friendly to Moscow, arguing that the reforms were an internal matter. The Prague Spring ended on August 21, when Soviet forces entered Prague. Dubček urged the people not to resist before he and other key reformers were seized and taken to Moscow where they were forced to accede to Soviet demands. Dubček was returned to Prague on August 27 and retained his post as First Secretary for a while.In April 1969 Dubček lost the Secretaryship and was made ambassador to Turkey (1969-70) before being expelled from the party in 1970.
During the Velvet Revolution of 1989 he supported the Civic Reform party of Vaclav Havel. Dubcek was elected speaker of the Federal Assembly on December 28, 1989, and re-elected in 1990.
He died following a car crash on November 7, 1992, and was buried in Slávičie Údolie, in Bratislava, Slovakia.
Dubček was considered a "Checko-Slovakist" who for most of his life supported the union of the Czech lands of Bohemia and Moravia with Slovakia in a single, although federal, state. His death was seen by many as a fatal blow to those who sought to resist the Velvet Divorce which took place on January 1, 1993, as well as to the new Slovak Republic, that needed a politician with Dubček's international recognition.