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 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 (0.08 MB) Credit: VIRIN: 906367-B-SCS75-059.jpg Photo Gallery