#743877August 20, 2010. From left: Russian President Dmitry Medvedev and President of Armenia Serzh Sargsyan pose for photographers at the informal summit of the Collective Security Treaty Organization (CSTO).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: 21.08.2010Author: Mikhail KlimentyevCredit: SputnikSource: SputnikOriginal: DigitalMedia: JPEG, 2238x3000px, 937.7Kbheads of state