A Spanish Marine military working dog pursues an escaping

A Spanish Marine military working dog pursues an escaping attacker during a demonstration for the U.S. Marines from Alpha Fleet Anti-terrorism Security Team Company Europe, Naval Station Rota Spain, along with British Royal Marine Commandos and Spanish Marines from the Infanteria de Marina, in Naval Station Rota, March 12, 2015. The demonstration included searching personnel for drugs and bomb making material, as well as vehicles and security capabilities. (U.S. Marine Corps photo by Sgt. Esdras Ruano)