AIRMAN'S QUESTION An airman asks a question to Defense Secretary Ash Carter, who spokes with airman on Nellis Air Force Base, Nev., Aug. 26, 2015. Carter visited the base to observe a Red Flag Exercise. DoD photo by U.S. Air Force Master Sgt. Adrian Cadiz SHARE IMAGE: Download Image: Full Size (1.01 MB) Tags: Carter , nellis afb, All images, Defense Secretary Photo By: DoD photo by U.S. Air Force Master Sgt. Adrian Cadiz VIRIN: 150826-D-DT527-635.JPG Photo Gallery