air-mobile operation - A man is sitting on top of a military truck

The 3rd Battalion, 157th Field Artillery conducts the unit’s first-of-its-kind, air-mobile operation at Camp Guernsey, Wyo., where it practiced a dry fire from two High Mobility Artillery Rocket Systems at a notional target and transported each of the systems on a C-130 aircraft to and from Peterson Air Force Base, Colo., Sept. 8, 2012 (Colorado Army National Guard photo by Spc. Bethany Fehringer)