As I have heard from literature and from research, ISIL has extremely powerful military capabilities and has used them to overtake huge swaths of territory in Iraq and Syria, as we see on the map. If ISIL is not degraded and ultimately destroyed by the coalition, what do you foresee ISIL being capable of? How much more damage could it inflict on Iraq and Syria if not confronted by the coalition air strikes that are going on?
On November 4th, 2014. See this statement in context.