A U.S. Marine Combat Instructor with the School of

A U.S. Marine Combat Instructor with the School of Infantry-East takes a breath after completing the Movement to Contact portion of the Combat Fitness Test; the first event in the Combat Instructor Stakes on Camp Geiger, N.C., Sept. 10, 2015. The Combat Instructor Stakes is a grueling 32-hour competition that pits two man, Combat Instructor teams against each other competing in physical, tactical and knowledge based events while carrying a combat load and moving over 55 kilometers on foot. (U.S. Marine Corps Photo by SOI-E Combat Camera, Cpl. Andrew Kuppers/Released)