To me CAG is Commander Air Group usually on a carrier. But that is probably not the poster means.
The 1st Special Forces Operational Detachment–Delta, referred to variously as Delta Force, Combat Applications Group(CAG)
But those guys could be involved too, if they can get their hands on some F111s, F15s, F16s, F35s to drop some JDAMs on folks involved. I would have no problem with that.