U.S. Air Force Staff Sgt. Steven Hein, an Air National Guard competitor, along with U.S. Air Force Chief Master Sgt. Del Atkinson and Tech. Sgt. Timothy Rooney, all from the 136th Security Forces Squadron, race to the end of an eight-mile ruck march during the Best Warrior Competition at Camp Swift, Texas, Feb. 6, 2015. The BWC test the aptitude of elite Texas Air and Army National Guardsmen in events relevant to today's operating environment. (Texas Air National Guard photo by Tech. Sgt. Vanessa Reed/ Released)