ASHULUK, August 20. /ITAR-TASS/. A fourth regiment in the Moscow region will adopt Russia’s newest S-400 air defense systems this autumn, the Commander of the Aerospace Defense Forces, Major General Andrei Demin said on Wednesday.

“A fourth air defense regiment will receive a new set of S-400 systems at the Kapustin Yar training range in September or October, conduct initial live fire training and, after redeployment to the Moscow region, go on combat duty,” Demion said after a live fire exercise at the Ashuluk test range in the southern Astrakhan region.

He said three regiments in the Moscow regions had already been armed with the S-400 systems. The first S-400 battalion went on combat duty in Elektrostal, Moscow region, in the summer of 2007 and was joined by another one in 2009.

A second regiment armed with S-400 systems went on combat duty in 2011, followed by a third one in 2014.

S-400 Triumf air defense systems were put on combat duty in Russia's Southern Military District at the end of 2012 to replace S-300PM missiles.

Supplies of new air defense systems to the 4th Air Force and Air Defense Command in the District began in 2009. Since then, more than 60 pieces of new military hardware have been delivered and put into service.

The Triumf system is twice as effective as the previous systems and can attack 10 targets with up to 20 missiles. The S-400 uses 3 different missiles to cover its entire performance envelope.

The Russian Ministry of Defense said that the S-400 was intended for the Russian Armed Forces only and would not be exported to other countries.