Vigilant Efforts U.S. Air Force Capt. John Stacey, left, and Staff Sgt. Aldwin Gacote strap down a simulated patient during a Vigilant Ace 16 aeromedical evacuation exercise on Osan Air Base, South Korea, Nov. 5, 2015. Stacey is a flight surgeon assigned to the 36th Fighter Squadron and Gacote is a technician assigned to the 18th Aeromedical Evacuation Squadron. U.S. Air Force photo by Staff Sgt. Benjamin Sutton SHARE: Download: Full Size (1.74 MB) Tags: Benjamin Sutton, Air National Guard, Osan, Photo Essays, HC-130 Combat King II, SOUTH KOREA, Aeromedical Evacuation, All images Credit: Staff Sgt. Benjamin Sutton VIRIN: 151105-F-YJ424-098.JPG Photo Gallery