Dempsey Meets with Vietnamese Prime Minister in Hanoi U.S. Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, and Vietnamese Prime Minister Nguyen Tan Dung meet in Hanoi, Vietnam, Aug. 14, 2014. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 661268-Q-GOX02-852.jpg Photo Gallery