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
Assadullah Sarwari Asadullah Amin in October 1979. In September 1979 Sarwari was involved in a pro-Nur Muhammad Taraki plot to oust Prime Minister Hafizullah Amin. After the failure of the plot, he and his comrades (the 'Gang of Four') escaped to the Soviet Embassy, where he was given asylum until the Soviet invasion and the fall of Amin in December 1979. After the invasion, under the government of Babrak Karmal, Sarwari was first given the task of deputy prime minister, but he was soon removed from the government and posted as ambassador to Mongolia from 1980 to 1986. In January 1980, Sarwari