ISIS is turning US Humvees into Iraq's worst nightmare

More than two-thirds of the Humvees the US supplied to Iraq to fight terrorists have ended up in the hands of Islamic State militants.

And the Islamic State (aka ISIS, ISIL, and Daesh, has not wasted any time in converting those vehicles into one of its deadliest and most nightmarish tools: suicide car bombs.

According to Iraqi Prime Minister Haider al-Abadi, ISIS controls about 2,300 armored US Humvees. Most of those vehicles were seized after ISIS overran Mosul in June 2014.

In addition to being used in further attacks against Iraqi forces, these vehicles were sent over the border to Syria to help ISIS solidify its foothold there.