STAFF SGT. William Dance and his dog, Bennie, represent the Air Training Command in the military working dog event, part of exercise Peacekeeper Challenge. Teams representing the best of more than 50,000 Air force security police on duty at more than 455 worldwide locations take part in the annual exercise. Competitive events include physical fitness, combat rifle, combat tactics, handgun, machine gun, grenade launcher, accident investigation, crime scene search and investigation, military working dog and information security