NATO CONFERENCE From left, Chairman of the Joint Chiefs of Staff U.S. Navy Adm. Mike Mullen talks to Czech Republic Lt. Gen. Vlastimil Picek and Czech Republic Lt. Gen. Jaroslav Kolkus at the NATO conference in Sofia, Bulgaria, Sept. 13, 2008. Mullen met with several European military leaders to discuss security issues. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 615840-X-UHL99-996.jpg Photo Gallery