Marine Corps Martial Arts Program
Marine students from the Center for Naval Aviation Technical Training Marine Unit perform squad pushups Dec. 13, 2017, at Little Rock Air Force Base, Ark. The instructors directed students to perform squad pushups as a warm-up before combative training. The Marine Corps Martial Arts Program is a close-quarters combat system that tests mental and character development. (U.S. Air Force photo by Airman 1st Class Kristine M. Gruwell)