REGIONAL SECURITY Chairman of the Joint Chiefs of Staff U.S. Navy Adm. Mike Mullen meets U.S. Ambassador to Turkey Ross Wilson after arriving in Istanbul, Turkey, Sept. 14, 2008. Mullen met with the Turkish prime minister while in Istanbul to discuss regional security matters. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 328120-J-DZZ21-914.jpg Photo Gallery