Babrak Karmal always been highly critical of his Khalqist predecessors Nur Muhammad Taraki and Amin's ultra-left radicalism. Karmal was promoted to Chairman of the Revolutionary Council and Chairman of the Council of Ministers on 27 December 1979. He remained in office until 1981, when he was succeeded by Sultan Ali Keshtmand. Throughout his term, Karmal worked to establish a support base for the PDPA by introducing several reforms. Among these were the Fundamental Principles of the Democratic Republic of Afghanistan, introducing a general amnesty for those people imprisoned during Nur Mohammad Taraki's and Amin's rule. He also replaced the red Khalqist flag
Babrak Karmal pre-recorded speech to the Afghan people was broadcast via Radio Kabul from Tashkent in the Uzbek SSR (the radio wavelength was changed to that of Kabul), saying: "Today the torture machine of Amin has been smashed, his accomplices – the primitive executioners, usurpers and murderers of tens of thousand of our fellow countrymen – fathers, mothers, sisters, brothers, sons and daughters, children and old people ..." Karmal was not in Kabul when the speech was broadcast; he was in Bagram, protected by the KGB. That evening Yuri Andropov, the Chairman of the KGB, congratulated Karmal on his rise to the