CHAIRMAN'S WELCOME U.S. Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, right, shakes hands with Czech Defense Minister Alexandr Vondra, left, while Michele Flournoy, undersecretary of defense for policy, center, looks on at the Pentagon, Jan. 24, 2012. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 340748-N-AUC30-075.jpg Photo Gallery