U.S. Air Force Senior Airman Jennifer Long, 4th Combat Camera Squadron, March Air Reserve Base, Calif., documents U.S. Marines providing simulated first aid during a mobilized operations course in support of Integrated Training Exercise 2-15 at Marine Corps Air Ground Combat Center Twentynine Palms (MCAGCC), Calif., Feb. 2, 2015. MCAGCC conducts relevant live-fire combined arms training, urban operations, and joint/coalition level integration training that promotes operational forces' readiness. (U.S. Air Force photo by Staff Sgt. Heather Cozad Staley/Released)