NELLIS AIR FORCE BASE, Nev. -- Chief Master Sgt. of the Air Force James Roy is greeted by Chief Master Sgt. Alfred Herring, 99th Air Base Wing command chief, at base operations, Jan. 22. Chief Roy visited the enlisted Airmen assigned to Nellis, Creech and Fort Irwin. (U.S. Air Force photo/Airman 1st Class Brett Clashman)