Today, the Russian capital is protected against aerial attacks by the A-135 missile defense system. It development started back in 1971 and the first launch took place in 1979.
The A-135 includes the Don-2N radio-radar station, located in Sofrino, near Moscow. It detects warheads in flight, at a distance of up to 3,700 km, and the information is transmitted to the 5K80 command point. The information is then processed and transmitted further to missile launching sites with 53T6 interceptors.
In 2014, Russia started testing a new missile defense system, the A-235. In January, the Russian Aerospace Forces announced it would test of a new interceptor missile within the next two to three years.