MEETING THE TROOPS U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, greets members of the Latvian military after reviewing Latvian troops during a ceremony welcoming Mullen to Riga, Latvia, Oct. 21, 2008. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 939421-G-NVF16-110.jpg Photo Gallery