Secretary Gates walks with Vietnamese Minister of Defense Gen. Phung Quang Thanh. Secretary of Defense Robert M. Gates walks with Vietnamese Minister of Defense Gen. Phung Quang Thanh as they greet respective staffs during a Guards of Honor Ceremony commemorating the official U.S. visit to the Vietnamese Military headquarters in Hanoi, Vietnam, on Oct. 11, 2010. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 187776-U-FCC40-728.jpg Photo Gallery