From last year’s firefighting competition, members of the Travis Air Force Base, Calif., Firefighter Combat Challenge team race against the clock during the "dummy drag." In the competition, firefighters from around the world have to perform five different tasks, including a simulated rescue of a life-sized, 175-pound "victim." The team from Travis now has won the competition for the fourth consecutive year. (U.S. Air Force photo/Senior Master Sgt. Jeff Vaughn)