It came to light recently that the last geostationary satellite of the Oko-1 ballistic missile early detection system had gone out of commission. The loss of the satellite weakened the outer space segment of the Missile Attack Warning System (MAWS), which is one of the main elements of the country's strategic defense system.
According to a source close to the Ministry of Defense, the lack of geostationary satellites is being compensated for by new horizon radar systems known as Voronezh-M and Voronezh-DM. Located in the Kaliningrad, Leningrad, Irkutsk, and Krasnodar regions, these stations operate in two frequency ranges: the meter range (Voronezh-M) and the decimeter range (Voronezh-DM). They create a radar field, which makes it possible to easily detect space objects and effectively prevent missile attacks. The new system will perform at a higher level, and will track not only ballistic missiles, but tactical ones as well.