A U.S. Airman marshals out Col. Douglas Thies, 20th Operations Group commander, and Col. David Vaclavik, 20th Mission Support Group commander, in an F-16D Fighting Falcon at Shaw Air Force Base, S.C., May 30, 2017. Shaw marked the first assignment Thies and Vaclavik have had together since they graduated from the Texas A&M University Cadet Corps. (U.S. Air Force photo by Airman 1st Class Destinee Sweeney)