ALLIANCE HANDSHAKE U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, thanks Gen. Han Min-koo, chairman of the South Korean Joint Chiefs of Staff, after meetings in Seoul, Dec. 8, 2010. Mullen traveled to South Korea to meet with defense officials to reassure the strength of the U.S.-South Korean alliance in light of recent tensions with North Korea. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 853439-Q-UEB22-554.jpg Photo Gallery