Army Reserve Sgt. Chiara Fleming, a chemical, biological, radiological and nuclear (CBRN) specialist and native of Nashville, Tennesseee, assigned to the 318th Chemical Company, 453rd Chemical Battalion, 209th Regional Support Group, 76th Operational Response Command, manipulates the transversing and elevation knob on a M2 .50 caliber machine gun platform as part of Operation Gauntlet at Fort Riley, Kansas, April 4. 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)