Your tax payer dollars at work. Iraq lost 2,300 Humvees in Mosul

via Daily Star.

Iraqi security forces lost 2,300 Humvee armored vehicles when ISIS overran the northern city of Mosul, Prime Minister Haider al-Abadi said on Sunday.
"In the collapse of Mosul, we lost a lot of weapons," Abadi said in an interview with Iraqiya state TV. "We lost 2,300 Humvees in Mosulalone."
While the exact price of the vehicles varies depending on how they are armored and equipped, it is clearly a hugely expensive loss that has boosted ISIS's capabilities.
Last year, the State Department approved a possible sale to Iraq of 1,000 Humvees with increased armor, machineguns, grenade launchers, other gear and support that was estimated to cost $579 million.

Here.

Back of the paper estimate?  You're looking at probably around 3-5 billion dollars lost in the rout of Mosul.

That's your tax payer dollars at work.