Defense Chiefs Gather Chiefs of defense gather at Fort Belvoir, Va., for the Counter Violent Extremism Conference hosted by Marine Corps Gen. Joe Dunford, the chairman of the Joint Chiefs of Staff, Oct. 24, 2017. DoD photo by Jim Garamone SHARE IMAGE: Download Image: Full Size (1.9 MB) Tags: fort belvoir, Dunford , CJCS Photo By: Jim Garamone VIRIN: 171024-D-FN340-1001A.JPG Photo Gallery