A C-17 Globemaster III assigned to Travis Air Force Base, Calif., lands May 20 while participating in the Mobility Air Forces Exercise at Nellis Air Force Base, Nev. Air Mobility Command officials plan to move 300-plus Stryker vehicles and support equipment into Afghanistan over the next two months on Air Force C-17s flown by military crews, and AN-124s, operated by commercial partners. (U.S. Air Force photo/Airman 1st Class Brett Clashman)