"Regional and international powers are proceeding according to their own interests," Mr. Sahad said. "These forces sponsor the continuation of tribal and regional differences, but at this point I think it is fair to say that Hafter and the mufti are the main obstacles to unity."
Libya discord threatens to overshadow military successes against ISIS →
The southwestern city of Awbari is the "key entry point" for these mercenaries, said Ibrahim Sahad, a former captain in the Libyan army.
Gadhafi could wage protracted civil war →
