U.S. Air Force Airmen and U.S. Marine Corps Marines perform push-ups in unison during a training session while attending the Marine Corps Martial Arts Program at Dyess Air Force Base, Texas, July 28, 2017. The MCMAP teaches martial arts and hand-to-hand combat while also helping to strengthen the camaraderie between participants. (U.S. Air Force photo by Senior Airman Austin Mayfield)