Sultan Ali Keshtmand torture and long imprisonment. He remained in prison and was sentenced to death, but this decision was revoked and he was resentenced to 15 years in prison. On December 1979, the Soviet Union invaded Afghanistan, bringing Babrak Karmal and the Parcham faction to power. Keshtmand was released from jail, and was once again joined the Politburo. Friction among the People's Party members rose in 1980 when Karmal removed Assadullah Sarwari from his position as First Deputy Chairman of the Council of Ministers and replaced him with Sultan Ali Keshtmand. Keshtmand, a Parchami, soon became one of the most important leaders
1979 in Afghanistan one time estimated to number 140,000. Amin is overthrown and killed in a coup backed by Soviet troops. Viktor Karpukhin carries out the taking of the presidential palace, in which two Soviet soldiers are killed. Ex-deputy prime minister Karmal, who has been in exile in Czechoslovakia, is picked as Amin's successor. The Soviets have begun a massive military airlift into Kabul, and at least two motorized divisions have crossed the Soviet-Afghan border. Babrak Karmal, whose Parcham party spearheaded the coup against Daud but later lost power to the faction led by Taraki and Amin, is considered more pro-Soviet than Amin