U.S. Army and Air Force medics observe a surgery during MEDEX 16, a medical exercise held at Misawa Air Base, Japan, Aug. 24, 2016. The patient had surgery on his back to remove a mass from his body. MEDEX 16 provided a unique training opportunity, enhancing the capabilities of its participants by using real patients instead of scenario based ones. (U.S. Air Force photo by Tech. Sgt. Araceli Alarcon)