Col. Erich W. Schroeder, left, 2nd Medical Group commander,

Col. Erich W. Schroeder, left, 2nd Medical Group commander, and Col. Christopher K. Parris, right, incoming 2nd Dental Squadron commander, unravel the 2nd DS flag during the 2nd DS reactivation and assumption of command ceremony at Barksdale Air Force Base, La., Oct. 28, 2020. An assumption of command ceremony is a military tradition that represents a formal transfer of authority and responsibility for a unit from one commanding or flag officer to another. (U.S. Air Force photo by Airman 1st Class Jacob B. Wrightsman)