Air Force Maj. Twana Hadden, left, and Staff Sgt. Sean McCurbin discuss procedures before preparing a C-17 Globemaster III for aerial transport of a patient at Travis Air Force Base, Calif., May 13, 2018. Hadden is a flight nurse and McCurbin is an aeromedical evacuation technician assigned to the 375th Aeromedical Evacuation Squadron, which provides and sustains critical care in the air for military members and their families as they travel to follow-on medical treatment facilities or return to home station. Air Force photo by Lan Kim