Correct,and the way you do that is to establish the ABSOLUTE CERTAINY that we WILL track down and kill their leaders.Pretty soon you will find out that nobody wants to be a leader,and the sheep return home to their flock.
Trust me,you accomplish not one damn thing by killing one of their "soldiers". On the other hand,you accomplish one hell of a LOT when you make specific targets of their leaders. Leaders don't give a damn about the lives of their followers,but they DO seem to care a lot about their own lives.