U.S. Army Reserve Staff Sgt. Dorian Yeager, water treatment specialist, assists Spc. Justin Martinez, paralegal specialist, both with 382nd Combat Sustainment Support Battalion, while he fires the first rounds downrange with an M2 machine gun for weapons qualification during Operation Cold Steel II, hosted by the 79th Theater Sustainment Command at Fort Hunter Liggett, Calif., Oct. 15, 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 photo by Sgt. Heather Doppke/79th Theater Sustainment Command)