It is self-evident that they do. They hold a larger territory than Iraq and even the U.S. air attacks has done nothing to push back their territory. They are funded to the tune of $100 million a day between their oil and extortion and smuggling businesses. They not only can afford any equipment on the black market they have the expertise to do ever except fly advanced aircraft. For now.
Remember, these are professionals who have been fighting since Bosnia and they have state support. They have been in business long enough to have experienced military officers who've been to academies as their commanders. It takes five years to mold effective NCOs that are the backbone of any army. And they have them too which makes their recruits effective be from the start.
This is a terrifyingly effective and efficient fighting force. And test, they have Abrams.
Will U.S. Fighters Hit U.S.-Made Tanks in Iraq? | DoD Buzz
From the article:
In the past, the Pentagon has referred questions about the matter to the Iraqi military. “DoD is not in a position to provide information on the status of Iraqi military equipment,” Navy Cmdr. Bill Speaks, a spokesman at the Pentagon, said in an e-mail from June. “You would have to ask the Iraqis.”
As of 2012, the Defense Department’s $11.6 billion foreign military sales program with Iraq was the fourth-largest in the region and the ninth-largest in the world, according to the Congressional Research Service.
The U.S. has already delivered to Iraq 140 M1 Abrams tanks and, in recent weeks, rushed delivery of 5,000 more Hellfire missiles, according to a July 2 report from the service.
The article seems to be saying that the U.S. doesn't know how many of the 140 Abrams are in the possession of Isis.
The rule of asymmetrical warfare is that the enemy is winning unless he is clearly losing. Just being able to exist is winning for these people. They are not only not losing at this point, they're still expanding territory.
To give a geopolitical overview, Iran is now fighting with us. The price for them taking arms against Isis appears to be agreement that they can develop atomic weapons.