355th Medical Group change of command
U.S. Air Force Col. Lea Ann Calderwood, 355th Medical Group outgoing commander, passes the guidon to Col. Scott Mills, 355th Wing commander, during a change of command ceremony at Davis-Monthan Air Force Base, Ariz., July 14, 2023. Calderwood relinquished command to Col. Jennifer Bein, 355th MDG incoming commander. (U.S. Air Force photo by Airman 1st Class Jasmyne Bridgers-Matos)