Chief Master Sgt. of the Air Force James A. Cody thanks Air Force Chief of Staff Gen. Mark A. Welsh III for his exceptional service by presenting him with an invitation to an Order of the Sword ceremony following his "Enlisted Force Update" at Air Force Association's Air and Space Conference and Technology Exposition, Sept. 16, 2015, in Washington, D.C. (U.S. Air Force photo/Scott M. Ash)