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
1981 in Afghanistan and consumer goods. According to UN statistics, 1.7 million Afghans have so far fled to Pakistan and some 400,000 to Iran in order to escape the strife in their country. President Karmal gives up the post of prime minister; he is succeeded in that position on June 11 by Sultan Ali Keshtmand, another trusted member of the Parcham faction of the PDPA. Keshtmand is also put in direct charge of the National Patriotic Front, set up in December 1980 with the intention of rallying the people behind Karmal's Marxist revolutionary government. Karmal announces a new set of proposals for negotiations