U.S. Secretary of State John Kerry (C) escorts Afghan President Hamid Karzai (2nd L) to a meeting in Brussels April 24, 2013. Kerry hosted the meeting on Wednesday with the aim of calming tension over border disputes and a flagging peace process, officials said. Also pictured are (from L-R): Afghan Defense Minister Bismillah Mohammadi, Pakistani Army Chief General Ashfhaq Parvez Kayani (partially obscured), Afghan Foreign Secretary Jalil Abbas Jilani, and U.S. General Joseph Dunford, commander of the International Security Assistance Force (ISAF) in Afghanistan. REUTERS/Evan Vucci/Pool (BELGIUM - Tags: POLITICS MILITARY)