DEFENSE COUNTERPARTS U.S. Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, walks with Vietnamese Chief of Defense Lt. Gen. Do Ba Ty at the Ministry of Defense in Hanoi, Vietnam, Aug. 14, 2014. Dempsey is the first chairman to visit the country since the Vietnam War. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 640484-E-JGH34-468.jpg Photo Gallery