U.S. Soldiers with the 421st Quartermaster Company, 143rd Sustainment Command (Expeditionary), prepare to jump from a C-130 Hercules cargo plane during annual training at Muñiz Air National Guard Base in Carolina, Puerto Rico, July 16, 2013. The Fort Valley, Ga., based rigger unit conducted three weeks of exercises, which included personnel, equipment and vehicle airdrops at multiple locations across Puerto Rico. (U.S. Army photo by Staff Sgt. Cooper T. Cash/Released)