An Army Reserve Soldier from the 76th Operational Response Command engages targets with a mounted .50 caliber machine-gun at a qualification range at Fort Riley, Kansas, April 3 as part of Operation Gauntlet. More than 450 Army Reserve Soldiers from around the country are participating in the three-week gunnery exercise to hone crucial gunnery skills and increase battlefield lethality. (Official U.S. Army Reserve photo by Sgt. 1st Class Brent C. Powell)