U.S. Air Force Master Sgt. Virginia Holmgren, a 124th Medical Group respiratory therapist with the Idaho Air National Guard, adjusts a patient’s ventilation levels on board a C-17 Globemaster III from Travis Air Force Base, Calif., after leaving Joint Base Pearl Harbor-Hickam, Hawaii, May 18, 2018. Holmgren was part of a critical care air transport team providing medical supervision of a patient back to Travis. (U.S. Air Force photo by Lan Kim)