"To ratify the agreement between the Russian Federation and the
Republic of Tajikistan on the creation of the Joint Regional
Air Defense System of the Russian Federation and the Republic of Tajikistan," the document says.
As previously reported, the new system will become part of the unified air defense system of the CIS member states.
The agreement is concluded for five years with the possibility of automatic renewal.
In April, Russian Defense Minister Sergei Shoigu announced the creation of a joint air defense system by Russia and Tajikistan.
According to him, the system will allow "to increase the reliability of the protection of the state border in the airspace."