Arno, a military working dog with the 510th Military Police Detachment, 716th Military Police Battalion, supported by the 101st Sustainment Brigade, 101st Airborne Division, sprints to attack his aggression sleeve during a retirement assessment while Spc. Samantha Ramirez (left) and Pfc. Jared Bridges (right), both military dog handlers with the 510th MP Det., watch Sept. 4, at Fort Campbell, Ky. The assessment will determine if Arno is a suitable candidate for adoption after he retires from the military. (U.S. Army photo by Sgt. Leejay Lockhart, 101st Sustainment Brigade Public Affairs)