Alexander Dubček (Slovak pronunciation: [ˈaleksander ˈduptʂek]; 27 November 1921 – 7 November 1992) was a Slovak statesman who served as the First Secretary of the Presidium of the Central Committee of the Communist Party of Czechoslovakia (KSČ) (de facto leader of Czechoslovakia) from January 1968 to April 1969 and as Chairman of the Federal Assembly from 1989 to 1992 following the Velvet Revolution. He oversaw significant reforms to the communist system during a period that became known as the Prague Spring, but his reforms were reversed and he was eventually sidelined following the Warsaw Pact invasion in August 1968. Best known by the slogan, "Socialism with a human face", Dubček led a process that accelerated cultural and economic liberalization in Czechoslovakia. Reforms were opposed by conservatives inside the party who benefited from the Stalinist economy, as well as interests in the neighboring Soviet-bloc who feared contagion, western subversion, strategic vulnerability, and loss of institutional power. For reasons of institutional interests in the Soviet Union such as those of the military and KGB, false reports, and the growing concern among the Soviet leadership that Dubček was no longer able to maintain control of the country, Czechoslovakia was invaded ... ()