Babrak Karmal Parchamite faction found itself under significant pressure by the Khalqists soon after taking power. In June 1978, a PDPA Central Committee meeting voted in favor of giving the Khalqist faction exclusive control over PDPA policy. This decision was followed by a failed Parchamite coup, after which Hafizullah Amin, a Khalqist, initiated a purge against the Parchamites. Karmal survived this purge but was exiled to Prague. Karmal remained in exile until December 1979, when the Soviet Union intervened in Afghanistan (with the consent of Amin's government) to stabilize the country. The Soviet troops staged a coup and assassinated Amin. Karmal had
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