WHITEMAN AIR FORCE BASE, Mo. -- U.S. Air Force Col. Sandra Nestor assumes command of the 509th Medical Group and receives the ceremonial guidon from U.S. Air Force Col. Daniel Diehl, 509th Bomb Wing commander, at Whiteman Air Force Base, Missouri, July 20, 2022. The 509th MDG supports the 509th BW and Whiteman AFB tenant units by providing medical support, community health and wellness, and mission-ready medical Airmen. (U.S. Air Force photo by Airman 1st Class Bryson Britt)