Finland's Minister of Defense Wallin signs the guestbook at the Pentagon Finland's Minister of Defense Stefan Wallin signs the guestbook as Secretary of Defense Leon E. Panetta looks on as he arrives at the Pentagon in Arlington, Va., on May 10, 2012. Panetta and Wallin will meet to discuss security issues of interest to both nations. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 249351-Y-HTW24-341.jpg Photo Gallery