August 20, 2010. From left: President of Belarus Alexander Lukashenko. President of Kazakhstan Nursultan Nazarbayev, President of Kyrgyzstan Roza Otunbayeva, President of Armenia Serzh Sargsyan, Russian President Dmitry Medvedev, President of Tajikistan Enomali Rakhmon and CSTO Secretary General Nikolay Bordyuzha pose for photographers at the informal summit of the Collective Security Treaty Organization (CSTO).
