Earlier this month, Shia militiamen in Iraq dropped off an American-supplied Abrams tank at a US-supported repair facility where workers were surprised to find an attached Russian machine gun plus Iranian ammo, Defense News has learned.

The MIA1 main battle tank — one of 146 frontline tanks the US sold to Baghdad — was transported through the Green Zone to a US-supported Iraqi service facility at al-Muthanna that was established as part of the Pentagon’s Foreign Military Sales (FMS) program.

The tank was equipped with a Russian .50-caliber machine gun and Iranian-stamped 12.75-mm ammunition, according to a source at the facility. […]