U.S. Air Force Col. Edward Johnson, 624th Aeromedical Staging Squadron incoming commander, speaks to audience members during the 624th ASTS change of command ceremony in front of the 15th Medical Group building at Joint Base Pearl Harbor-Hickam, Hawaii, Aug. 8, 2020. Johnson previously served as the commander of the 349th Medical Squadron at Travis Air Force Base, California, since December 2015. (U.S. Air Force photo by Tech. Sgt. Amber E. N. Kurka)