Babrak Karmal befriended fellow inmate Mir Akbar Khyber, who introduced Karmal to Marxism. Karmal changed his name from Sultan Hussein to Babrak Karmal, which means "Comrade of the Workers'" in Pashtun, to disassociate himself from his bourgeois background. When he was released from prison, he continued his activities in the student union, and began to promote Marxism. Karmal spent the rest of the 1950s and the early 1960s becoming involved with Marxist organizations, of which there were at least four in Afghanistan at the time; two of the four were established by Karmal. When the 1964 Afghan Provisional Constitution, which legalised the
Babrak Karmal rebels collapsed quickly, and on 16 April 1992 the rebels, led by Gulbuddin Hekmatyar, took Kabul. After the fall of Najibullah's government, Karmal was based in Hairatan. There, it is alleged, Karmal used most of his time either trying to establish a new party, or advising people to join the National Islamic Movement ("Junbish-i-Milli"). Abdul Rashid Dostum, the leader of Junbish-i-Milli, was a supporter of Karmal during his rule. It is unknown how much control Karmal had over Dostum, but there is little evidence that Karmal was in any commanding position. Karmal's influence over Dostum appeared indirect – some of