YEREVAN. – Work on the creation of the joint Armenian-Russian air defense system has been going on for several years, CSTO chief Nikolay Bordyuzha said in Yerevan.

He emphasized that it is rather complicated document that has to be agreed in several stages.

Joint Russian-Belarussian and Russian-Kazakh air defense systems have been created, Bordyuzha said at a joint press conference with the chief of the Armenian National Security Council Armen Gevorgyan.

“This is the first stage, the second will unite all to create a common air defense system in the entire CSTO area. This is a serious measure to enhance security of our countries,” he assured.