In one of her last official major duties as Air Force secretary, Deborah Lee James applauds after presenting Air Force Col. Christopher C. Barnett two Silver Star medals at Maxwell Air Force Base, Ala., Jan. 19, 2017. Barnett had received the Distinguished Flying Cross for valor for actions in Afghanistan in 2009. A review of the awards upgraded the medals to the Silver Star -- the third highest award for gallantry. Barnett is an instructor at the Air War College. Air Force photo by Melanie Rodgers Cox