MOSCOW, February 17. /TASS/. The Russian Aerospace Force’s new air defense regiment armed with the advanced S-400 Triumf missile systems will go on combat duty on February 21 to defend Moscow and Russia’s Central Industrial District, the Defense Ministry’s press office reported on Friday.

"After the new S-400 systems assume combat duty, there will be already five antiaircraft missile regiments in the Aerospace Force’s air defense units armed with S-400 Triumf complexes that will provide air defense for Moscow and the Central Industrial District of Russia," the ministry said in a statement obtained by TASS.

The preparation of antiaircraft missile complexes and technical positions for combat duty in the Moscow Region has been completed. The Aerospace Force’s antiaircraft missile regiment will go on combat duty on February 21, the statement said.

The S-400 Triumf is the most advanced long-range antiaircraft missile system that went into service in 2007.

It is designed to destroy aircraft, cruise and ballistic missiles, including medium-range missiles, and can also be used against ground objectives.

The S-400 can engage targets at a distance of 400 km and at an altitude of up to 30 km.