A C-17 Globemaster III from Joint Base Pearl Harbor-Hickam takes on fuel from a Hawaii Air National Guard 204th Air Refueling Squadron KC-135 Stratotanker during a mission to Andersen Air Base, Guam. C-17 crews like this one sometimes perform aeromedical evacuations in the Pacific theater requiring coordination across many operational and medical disciplines. (U.S. Air Force photo/Staff Sgt. Mike Meares)