Who became the leader of XXX?
Austria
Karl Renner and Adolf Schärf (Socialist Party of Austria (Social Democrats and Revolutionary Socialists)), Leopold Kunschak (Austria's People's Party (former Christian Social People's Party)) and Johann Koplenig (Communist Party of Austria) declared Austria's secession from the Third Reich by the Declaration of Independence on 27 April 1945 and set up a provisional government in Vienna under state Chancellor Renner the same day, with the approval of the victorious Red Army and backed by Joseph Stalin.
Karl Renner