20th CSAF portrait unveiled
The official portrait of retired Gen. Mark A. Welsh III, former chief of staff of the Air Force, is unveiled during a ceremony at the Pentagon, Washington, D.C., Sept. 14, 2017. The portrait will be on display in the Pentagon's Arnold Corridor alongside the portraits of the other former Air Force chiefs of staff. (DoD photo by Tech. Sgt. Brigitte N. Brantley)