U.S. Air Force Staff Sgt. Colton M. Gabriel, 316th Security Support Squadron, and his working dog, Lucky, finish a security sweep on a bus arriving June 10, 2025, at Joint Base Andrews, Md. The bus was among several transporting U.S. Army Soldiers arriving at Andrews to participate in activities in Washington, D.C., celebrating the Army’s 250th birthday. (U.S. Air Force photo by Patrick Griffith)