We may have achieved peak military-industrial complex: the U.S. is in part supplying both sides of the Iraq-Islamic State conflict and through that, creating the need for a new class of weapons to be sold as a counter measure. As arms manufacturers across our great land say, it doesn’t get any better than this.

Islamic State militants have not only acquired a grand majority of the military Humvees gifted to and then abandoned by the Iraqi Army, they are now re-purposing them into car bombs to use against the Iraqi Army (Hint: don’t leave the keys in the car next time.*)

Iraqi Prime Minister Haider al-Abadi confirmed that 2,300 are in ISIS hands, more than two-thirds of all Humvees provided to Iraq by the U.S.

While the vehicles make for handy battlefield transportation, it turns out they are almost tailor-made for use as suicide car bombs.

“There’s a simple reason the militants are using Humvees and other armored vehicles as rolling bombs,” reported Foreign Policy. “Their armor plating prevents defenders from killing the trucks’ drivers before the militants can detonate their loads, while the vehicles’ capacity to carry enormous amounts of weight means the Islamic State can pack in a ton of explosives.”

What to do when the weapons you gave to the Iraqi Army ended up as a super weapon of the enemy? Why, you sell new weapons to the Iraqi Army!

And so the U.S. has outfitted the Kurdish Peshmerga with 1,000 AT-4 anti-tank missiles last year, and plans to send 2,000 to the so-called Iraqi Army. Germany has provided the Peshmerga with the Milan guided missile, which has also been proven effective against the Humvee bombs. Assuming the Iraqi side holds on to their American-made missiles, they can be used to blow up the American-made Humvees.

The things work well. In fact, according to the Daily Caller, the anti-tank missiles are so popular, one Kurdish family even named their child after the weapon.

* Joke! They don’t have keys.

Peter Van Buren blew the whistle on State Department waste and mismanagement during Iraqi reconstruction in his first book, We Meant Well: How I Helped Lose the Battle for the Hearts and Minds of the Iraqi People. His latest book is Ghosts of Tom Joad: A Story of the #99 Percent. Reprinted from the his blog with permission.