Marine Meeting Defense Secretary Ash Carter talks with Marines as they take a break from a squad attack live-fire demonstration on Marine Corps Base Quantico, March 9, 2016. DoD photo by Air Force Senior Master Sgt. Adrian Cadiz SHARE: Download: Full Size (0.73 MB) Tags: marines, quantico, defense secretary, secdef, ash carter, virginia Credit: Senior Master Sgt. Adrian Cadiz VIRIN: 160309-D-DT527-362.JPG Photo Gallery