Air Force Capt. Antonio Stone, left, and Air Force Maj. Johnathan Henderson insert a chest tube into simulated casualty during a recovery exercise at Bagram Airfield, Afghanistan, Sept. 3, 2016. Stone is a nurse and Henderson is a doctor assigned to the 455th Expeditionary Aeromedical Evacuation Critical Care Air Transport Team. Air Force photo by Senior Airman Justyn M. Freeman