U.S. Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, talks with British Army Gen. Nicholas Houghton, chief of Britain's defense staff, in between NATO’s Military Committee meetings in Brussels, Jan. 22, 2015. U.S. Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, talks with British Army Gen. Nicholas Houghton, chief of Britain's defense staff, in between NATO’s Military Committee meetings in Brussels, Jan. 22, 2015. SHARE: Download: Full Size (1.13 MB) Tags: Photo Essays Credit: VIRIN: 912016-Q-MQV85-545.jpg Photo Gallery