Maj. Regan Lyon, a Special Operations Surgical Team emergency medical physician with the 720th Operations Support Squadron, greets Secretary of the Air Force Heather Wilson at Hurlburt Field, Florida, May 3, 2018. SOSTs are lightweight, mobile and rapidly deployable medical elements designed to support a wide spectrum of U.S. Special Operations Command missions in varying threat environments, locations, light conditions and weather-forward and independent of established healthcare support systems or facilities. (U.S. Air Force photo by Staff Sgt. Victor J. Caputo)