Hence the reason Obama’s pinprick airstrikes won’t even come close to dislodging ISIS.

With the Obama White House left reeling from the “savage” slaughter of an American journalist held hostage by ISIS terrorists, military options are being considered against an adversary who officials say is growing in strength and is much more capable than the one faced when the group was called “al Qaeda-Iraq” during the U.S. war from 2003-2011.

ISIS, the Islamic State of Iraq and Syria, has been making a “tactical withdrawal” in recent days in the face of withering U.S. airstrikes from areas around Erbil in northern Iraq and from the major dam just north of Mosul it controlled for two nail-biting weeks, according to military officials monitoring their movements.