PRESS SESSION U.S Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, and Gen. Zdravko Ponos, Serbian chief of defense, answer questions during a press conference in Belgrade, Serbia, Oct. 20, 2008. Mullen is on a three-day trip to the region to visit defense counterparts. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 879365-O-JUI39-384.jpg Photo Gallery