21st MDG holds retreat
Members of the 21st Medical Group lower the flag during a retreat ceremony hosted by the group Aug. 31, at the 21st Space Wing headquarters building on Peterson Air Force Base. A retreat ceremony is held the last duty day of the month at Building 845, hosted by one of the 21st Space Wing’s groups. The retreat ceremony serves a twofold purpose. It signals the end of the official duty day and serves as a ceremony for paying respect to the flag. (U.S. Air Force photo/ Larry Hulst)