He was a staunch conservative fundamentalist, though not—unlike Gulbadin Hekmatyar, his original commander with whom he severed his ties for being too extreme—a hardliner, and wrote the 1991 treatise "An Appeal to Support the Holy War in the Sudan". After the fall of the communist government in 1992, his forces controlled Nangarhar Province in eastern Afghanistan. According to a statement from his son, Anwar al-Haq Mojahed, Khalis died on July 19, 2006.