436th Medical Group welcome new OMRS commander
Lt. Col. Andrew Rees, right, outgoing 436th Operational Medical Readiness Squadron commander, passes the guidon to Col. Tracy Allen, 436th Medical Group commander, during a change of command ceremony on Dover Air Force Base, Delaware, May 27, 2021. The ceremony saw Rees relinquish command to Lt. Col. Kristen Nichols. (U.S. Air Force photo by Airman 1st Class Stephani Barge)