During the civil war in Lebanon he actively cooperated with Musa Al Sadr, founder of the Amal movement.Chamran also became an Amal member and “right-hand man of Sadr”.Chamran along with Sadegh Ghotbzadeh was part of the faction, called “Syrian mafia”, in the court of Khomeini, and there was a feud between his group and the Libya-friendly group, led by Mohammad Montazeri.