U.S. Army Gen. Martin E. Dempsey, right center, chairman of the Joint Chiefs of Staff, British Gen. Nicholas Houghton, left center, chief of Britain's defense staff, and U.S. and British military chiefs pose for a photograph in London, June 10, 2014. U.S. Army Gen. Martin E. Dempsey, right center, chairman of the Joint Chiefs of Staff, British Gen. Nicholas Houghton, left center, chief of Britain's defense staff, and U.S. and British military chiefs pose for a photograph in London, June 10, 2014. SHARE: Download: Full Size (2.03 MB) Tags: Photo Essays Credit: VIRIN: 518321-Q-MSQ41-523.jpg Photo Gallery