U.S. Army Reserve Spc. Adriana Nunez (front) and Sgt.

U.S. Army Reserve Spc. Adriana Nunez (front) and Sgt. Ryan Kaiser, ammunition handlers, sort spent ammunition to remove rocks and links to prepare it for weighing and turn in during Operation Cold Steel at Fort McCoy, Wis., April 6, 2017. Operation Cold Steel is the U.S. Army Reserve's crew-served weapons qualification and validation exercise to ensure that America's Army Reserve units and Soldiers are trained and ready to deploy on short-notice and bring combat-ready and lethal firepower in support of the Army and our joint partners anywhere in the world. (U.S. Army Reserve photo by Staff Sgt. Debralee Best, 84th Training Command)