#1006969President Dmitry Medvedev (center, background) attending the Collective Security Treaty Organization summit with enlarged attendance, December 20, 2011.Sign in or register,to downloadAdd to cartRemove from cartPackage: CSTO summit in KremlinCategories: PoliticsLocation: Moscow, RussiaEvent date: 20.12.2011Date published: 20.12.2011Author: Dmitry AstakhovSource: SputnikCredit: SputnikOriginal: DigitalMedia: JPEG, 2904x1915px, 1.7Mbgeneral viewsession