Master Sgt. John Smith discusses aeromedical evacuation requirements. The aeromedical evacuation division executes worldwide aeromedical evacuation missions from the 618th Air and Space Operations Center at Scott Air Force Base, Ill. Sergeant Smith is an aeromedical evacuation mission planner from the 618th AOC's Global Readiness Directorate. (U.S. Air Force photo/Capt. Justin Brockhoff)