VIETNAMESE PRIME MINISTER Defense Secretary Robert M. Gates, right, escorts Vietnamese Prime Minister Nguyen Tan Dung through a cordon of honor guards and into the Pentagon on June 24, 2008. The leaders discussed a range of regional security issues of mutual interest to both nations. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 528588-I-DLT72-068.jpg Photo Gallery