June 24, 2022 375th Medical Group Change of Command U.S. Air Force Col. Raymond Clydesdale, 375th Medical Group commander, assumes command of the 375th MDG after receiving the guidon from Col. Chris Robinson, 375th Air Mobility Wing commander, on Scott Air Force Base, Illinois, June 23, 2022. As a chief flight surgeon, Clydesdale has flown 775 hours