21st Medical Support Squadron recieves new commander
Col. Christopher Vaughn, 21st Medical Group commander, presents the guidon to Lt. Col. Lisa Guzman, 21st Medical Support Squadron commander, during a change of command ceremony, June 10, 2019 at Peterson Air Force Base, Colorado. The passing of the guidon represents a formal transfer of authority and responsibility from an outgoing commander to an incoming one. This ensures that the unit and its Airmen are never without leadership. (U.S. Air Force photo by Staff Sgt. Alexandra M. Longfellow)