Survival of the fittest
Master Sgt. Tammy Freeman, 107th Aircrew Flight Equipment Squadron, instructs Senior Master Sgt. Thomas Obrochta, 136th Airlift Wing Squadron, on the proper technique of deploying signal devices. Both were part of a biannual training exercise that teaches aircrew water survival skills. (U.S. Air Force photo/Staff Sgt. Brandy Fowler)