U.S. Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, greets U.S. Air Force Academy cadets before the start of an Air Force-Army football game at the U.S. Air Force Academy’s Falcon Stadium in Colorado Springs, Colo., Nov. 2, 2013. Dempsey also attended the Air Force’s annual conference for Coordinating Research on the North Atlantic, also known as Corona, during his two-day visit to Colorado. (DOD photo by U.S. Navy Petty Officer 1st Class Daniel Hinton/Released)