5 of 38: Tajikistan's President Emomali Rakhmon, Russian President Dmitry Medvedev, Afghanistan's President Hamid Karzai and Pakistan's President Asif Ali Zardari, from left, walk prior to their meeting in Dushanbe, Tajikistan, Friday, Sept. 2, 2011. The leaders of the four nations gathered to discuss reconstruction in Afghanistan and the joint fight against drug trafficking and terrorism. (AP Photo/RIA Novosti, Dmitry Astakhov, Presidential Press Service) (AP Photo/ Dmitry Astakhov)

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