U.S. Defense Secretary Leon E. Panetta, left, greets Pierre Vimont, executive secretary general of the European External Action Service, before a meeting of representatives of the NATO-led International Security Assistance Force at NATO headquarters in Brussels, Feb. 22, 2013. U.S. Defense Secretary Leon E. Panetta, left, greets Pierre Vimont, executive secretary general of the European External Action Service, before a meeting of representatives of the NATO-led International Security Assistance Force at NATO headquarters in Brussels, Feb. 22, 2013. SHARE: Download: Full Size (3.76 MB) Tags: Photo Essays Credit: VIRIN: 400090-A-LLJ53-329.jpg Photo Gallery