NATO MEETING U.S. President Barack Obama, Afghanistan President Hamid Karzai, Secretary of State Hillary Clinton and U.S. Army Gen. David H. Petraeus, commander of International Security Assistance Forces and NATO troops in Afghanistan, meet at the NATO Summit in Lisbon, Portugal, Nov. 20, 2010. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 480551-J-GMN23-359.jpg Photo Gallery