18 December 2015, 09:58 GMT
MOSCOW (Sputnik) — "Four air defense regiments are providing Moscow and the Central industrial district with air defense after a new system was deployed on combat duty in formation of the Aerospace Defence Forces," the statement reads.
According to the statement, at least one more regiment equipped with S-400 systems is expected to be deployed on combat duty in the Moscow Region before the end of the year.
The S-400 Triumf (NATO reporting name SA-21 Growler) is by far Russia's most advanced surface-to-air missile system. It has a range of 400 kilometers (248 miles) and is capable of tracking and destroying all existing aerial targets, including ballistic and cruise missiles.
The S-400 Triumf Mobile Multiple Anti-Aircraft Missile System (AAMS)
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