Pentagon Media Brief Chief Pentagon spokesperson Dana W. White and Joint Staff Director Marine Corps Lt. Gen. Kenneth F. McKenzie brief the media at the Pentagon in Washington, D.C., Oct. 5, 2017. DoD photo by Air Force Tech. Sgt. Brigitte N. Brantley SHARE IMAGE: Download Image: Full Size (1.33 MB) Tags: brigitte brantley, Secretary of Defense , james mattis, JIm Mattis, Chaos, Department of Defense, Photo, DoD, Defense Secretary , SecDef, Pentagon, MILITARY Photo By: Brigitte N. Brantley VIRIN: 171005-D-GO396-0011.JPG Photo Gallery