Staff Sgt. Rachael Griffin, 94th Aeromedical Evacuation Squadron medical technician, guides litter carriers with simulated patients onto a C-5M Super Galaxy at Travis Air Force Base, Calif., on Aug. 23, 2108. Exercise Ultimate Caduceus is U.S. Transportations Command’s annual patient movement field training exercise. It simulated bringing in injured troops from overseas, triaging them at Travis AFB, and moving them to longer-term and advanced-care facilities. (U.S. Air Force photo/Staff Sgt. Daniel Phelps)