Armenian President Serzh Sargsyan will visit Moscow on May 8-9 to participate in the events dedicated to the 65th anniversary of the Victory in the Great Patriotic War. President Sargsyan has been invited by Russian President Dmitry Medvedev. While in the Russian capital, President Sargsyan will participate in the non-official meetings of the Heads of State of the Collective Security Treaty Organization and the Commonwealth of Independent States.