Capt. Christopher Ng, 51st Medical Operations Squadron general surgeon, left, and Tech. Sgt. Joshua Crook, 51st MDOS noncommissioned officer in charge of ambulance services, middle, are advised by an instructor from the Minnesota Air National Guard’s 109th Aeromedical Evacuation Squadron during a two-day Tactical Combat Casualty Care training course on Sept. 25, 2019, at Osan Air Base, Republic of Korea. TCCC is a joint training course that provides medical personnel with capabilities to serve in hostile combat conditions. (U.S. Air Force photo by Tech. Sgt. Matt Davis)