U.S. Air Force Airmen stand at attention as Joint Base Langley-Eustis honor guardsmen present the colors during a military working dog memorial ceremony at Langley Air Force Base, Va., Jan. 8, 2015. The ceremony honored the life and career of Erdo M614, former 633rd Security Forces Military Working Dog. (U.S. Air Force photo by Staff Sgt. Natasha Stannard/Released)