Military working dog handlers come together for joint competition
Staff Sergeant Heath Conley, a 71st Security Forces Squadron dog handler, calls out commands during a scenario in the Department of Defense Military Working Dog K-9 Trials held at Joint Base San Antonio-Lackland, Texas, May 4, 2012. More than 40 teams from each branch of service will compete in different obstacles and scenarios during the trials. (U.S. Air Force photo/Senior Airman Corey Hook)