20th Security Forces Squadron Change of Command
U.S. Air Force Maj. Christopher M. Sheffield, 20th Security Forces Squadron incoming commander, takes the flag from Col. Walter J. Fulda, 20th Mission Support Group commander, while Lt. Col. Mark R. Walsh, 20th Security Forces Squadron outgoing commander, watches them during the 20th SFS change of command ceremony at the Community Activity Center, Shaw Air Force Base, S.C., June 22, 2012. Sheffield replaced Walsh and will be responsible for protecting the United States’ largest F-16 fighter wing while presiding over 250 security forces members. (U.S. Air Force photo by Senior Airman Amber E. N. Jacobs/Released)