Let me begin by saying that we have to understand who ISIS is. ISIS is a radical Sunni group. They cannot just be defeated through air strikes. Air strikes are a key component of defeating them, but they must be defeated on the ground by a ground force. And that ground force must be primarily made up of Sunni Arabs themselves, Sunni Arabs that reject them ideologically and confront them militarily.
I've always seen the bright lights of the angels, and I know that lower-entities can't disguise this light, because it only comes from the Love of God.