#743687Armenian president Serzh Sargsyan (from left to right), Russian president Dmitry Medvedev and Kazakh president Nursultan Nazarbayev at informal meeting of heads of Collective Security Treaty Organization member states (CSTO). August 20, 2010.Sign in or register,to downloadAdd to cartRemove from cartPackage: Dmitry Medvedev's state visit to Armenia. Day twoCategories: PoliticsLocation: Yerevan, ArmeniaEvent date: 20.08.2010Date published: 20.08.2010Author: Mikhail KlimentyevCredit: SputnikSource: SputnikOriginal: DigitalMedia: JPEG, 3144x2298px, 1.1MbOrganizationpresidentSecuritystateTreaty