MOSCOW, January 10 (Sputnik) — The airspace around Moscow will be protected by the fourth regimental set of S-400 Triumph (SA-21 Growler) air defense systems, Russian Defense Ministry’s spokesperson told RIA Novosti Saturday.
"In 2015, one of the air defense missile system regiments in the Moscow region… will adopt into service the modern long-range air defense missile system S-400 Triumph," Col. Alexei Zolotukhin, a spokesperson for Russia’s Aerospace Defense Forces, said.
This regimental set will be the fourth as three S-400 regiments are deployed near Moscow in the cities of Dmitrov, Zvenigorod and Elektrostal.
The S-400 Triumph long- to medium-range surface-to-air missile system can engage any aerial target, including aircraft, unmanned aerial vehicles, and cruise and ballistic missiles at a distance of up to 400 kilometers (250 miles) and an altitude of up to 30 kilometers (over 98,400 feet).
The S-400 is expected to form the cornerstone of Russian air and missile defense by 2020 with nine regiments already deployed across the country as of December 2014.