Retired Chief Master Sgt. of the Air Force Robert Gaylor speaks to several Airmen during an Air Force ball Sept. 20, 2013, at the Civic Center, in Abilene, Texas. During the ball, Airmen displayed Air Force uniforms from different time periods throughout Air Force history as part of a skit in commemoration of the Air Force’s 66th birthday. (U.S. Air Force photo by Airman 1st Class Alexander Guerrero/Released)