Col. Alfred Flowers Jr., 99th Medical Group commander, greets Col. Mathew Boschert, 99th Mission Support Group commander, during a change of command ceremony at Nellis Air Force Base, Nevada, June 29, 2018. The 99th MDG provides medical care to Department of Defense beneficiaries to ensure maximum wartime readiness and combat capability. (U.S. Air Force photo by Airman 1st Class Andrew D. Sarver)