I know this is not right.
But sometimes I think we should give everyone over there a pre-made suicide bomb jacket, than get the heck out of there. But stop giving them any other weapons. Maybe have some type of GPS controlled detonator on the suicide bomb jackets that will explode if taken out of a certain area, so the bombs can not be used in other countries.
When they decide to stop fighting/blowing themselves up, we can make nice with whoever is left.
I doubt the fighting will ever end between the different tribes and whatever groups. This is why we should not have entered into this conflict to begin with.