NATO TOUR U.S. Defense Secretary Leon E. Panetta visits members of Naval Striking and Support Forces NATO, known as STRIKFORNATO, in Lisbon, Portugal, Jan. 15, 2013. Panetta is on a six-day trip to Europe to visit with defense counterparts and troops. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 742966-L-YFS86-952.jpg Photo Gallery