Yesterday Secretary of the Security Council under the RA President, Defense Minister Serge Sargsian met with Assistant to Secretary General of the Collective Security Treaty Organization Valery Semerikov, RA Defense Minister's Press Secretary, Colonel Seyran Shahsuvarian informed. During the meting the parties exchanged opinions on the process of preparation for the sitting of the CSTO Defense Ministers and the sitting of the Secretaries of Security Councils.