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
Prime Minister of Singapore from the Cabinet in 2011 but remained as members of Parliament. The role of Deputy Prime Minister is the second-highest post and senior Cabinet Minister in Singapore. The holder will sometimes assume the role of Acting Prime Minister when the PM is temporarily absent. Since the mid-1980s, Singapore has usually had two Deputy Prime Ministers at a time. Only Ong Teng Cheong and Tony Tan served under more than one Prime Minister during their time as Deputy Prime Minister. In the cabinet of Goh Chok Tong in the 1990s to 2004, current Prime Minister Lee Hsien Loong and former President