Tanks in the Soviet Union on Tajbeg Palace began; as planned, president Hafizullah Amin was killed. The Soviet military command at Termez, Uzbek SSR, announced on Radio Kabul that Afghanistan had been liberated from Amin's rule. According to the Soviet Politburo they were complying with the 1978 "Treaty of Friendship, Cooperation and Good Neighborliness" and Amin had been "executed by a tribunal for his crimes" by the Afghan Revolutionary Central Committee. That committee then elected as head of government former Deputy Prime Minister Babrak Karmal, and said that it had requested Soviet military assistance. Soviet ground forces, under the command of Marshal Sergei Sokolov, entered
Babrak Karmal put under government surveillance. To mitigate Daoud's suddenly anti-communist directives, the Soviet Union reestablished the PDPA; Taraki was elected its General Secretary and Karmal, Second Secretary. While the Saur Revolution (literally the April Revolution) was planned for August, the assassination of Khyber led to a chain of events which ended with the communists seizing power. Karmal, when taking power in 1979, accused Amin of ordering the assassination of Khyber. Taraki was appointed Chairman of the Presidium of the Revolutionary Council and Chairman of the Council of Ministers, retaining his post as PDPA general secretary. Taraki initially formed a government which