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 and border affairs. The new government quickly suppressed the opposition, and secured their power base. At first, the National Front government between Daoud and the Parchamites seemed to work. By 1975, Daoud had strengthened his position by enhancing the executive, legislative and judicial powers of the Presidency. To the dismay of the Parchamites, all parties other than the National Revolutionary Party (NRP, established by Daoud) were made illegal. Shortly after the ban on opposition to the NRP, Daoud began a massive purge of Parchamites in government. Mohammad lost his position as interior minister, Abdul Qadir was demoted, and Karmal was