OFFICIAL GREETING Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, exchanges greetings with retired Air Force Gen. Norton A. Schwartz at the Business Executives for National Security headquarters in Washington, D.C., Sept. 2, 2015. Schwartz, a former Air Force chief of staff, is the organization's president and CEO. DoD photo by U.S. Army Staff Sgt. Sean K. Harp SHARE IMAGE: Download Image: Full Size (1.75 MB) Tags: Dempsey , Army, All images, CJCS, Chairman of the Joint Chiefs of Staff, AIR FORCE Photo By: DoD photo by U.S. Army Staff Sgt. Sean K. Harp VIRIN: 150902-D-HU462-015.JPG Photo Gallery