130807-F-PJ779-001
Staff Sgt. Joseph Gilbert (left) stops to talk with two men waiting at a bus stop during the "DG 140 Memorial Ruck March" Aug. 7, 2013, in Hyattsville, Md. Gilbert and other tactical air control party Airmen assigned to the 13th Air Support Operations Squadron at Fort Carson, Colo., marched from Dover Air Force Base, Del. to Arlington National Cemetery, Va., to honor their fallen brother Maj. David Gray. Gray was killed Aug. 8, 2012, and members of the 13th ASOS weren't able attend his funeral due to mission requirements. They marched the 140-mile route Gray took from the mortuary at Dover AFB to Arlington. (U.S. Air Force photo/Tech. Mareshah Haynes)