Heads of member states of the Collective Security Treaty Organization (CSTO) will hold an informal meeting in Moscow on Dec.20, the organization's spokesman Vladimir Zaynetdinov told RIA Novosti on Friday.
Zaynetdinov said meetings of the Council of Foreign Ministers, the Committee of Secretaries of Security Councils and the Council of Defense Ministers of the organization will be held on the eve of the summit.
The previous meeting was held on Aug. 12 in Astana.
The summit discussed, in particular, the situation in the Middle East, North Africa and Afghanistan, as well as the prevention, control and elimination of consequences of natural and anthropogenic disasters in the CSTO zone of responsibility.