The summit of the leaders of the Collective Security Treaty Organization (CSTO) member-states will be held in Astana, the capital of Kazakhstan June 18-19, head of the Belarusian MFA press service Andrey Savinikh reported. To note, according to the statement made recently by Armenian defense minister Serge Sargsian, meetings of the CSTO defense and foreign ministers have been also scheduled. Let us remind that Armenia, Belarus, Kazakhstan, Kirghizia, Russia and Tajikistan serve on the CSTO.