October 14-17 commander-in-chief colonel general Vladimir Mikhailov will visit Armenia on working call. As Armenian defense ministry press service told "Arka" agency, issues of military and military-engineering cooperation within the framework of united air defense system of CIS member states are planned to be discussed in the course of the visit. Besides, the Russian air forces commander-in-chief plans to consider questions relating to presence of the 102-nd Russian military base air-unit in the Armenian territory, which fulfills tasks of joint battle duty with air defense troops and Armenian aviation within joint air defense system of CIS member states.