16:53 31/01/2014 Russia to Give Kazakhstan Air Defense Systems Free-of-Charge | Defense | RIA Novosti ASTANA, January 31 (RIA Novosti) â€“ Russia is set to supply fellow former Soviet nation Kazakhstan with S-300 air defense systems free-of-charge, a top Russian military official said Friday. Deputy Defense Minister Anatoly Antonov, who was part of a military delegation traveling to the Central Asian state, said five battalions of S-300PS systems would be supplied from the arsenals of the Russian army. Delivery of the systems will improve protection of Kazakhstanâ€™s airspace as well as strengthen the air defense network of the Moscow-led Collective Security Treaty Organization military alliance, Antonov said. The S-300PS (SA-10 Grumble) model was introduced to Soviet armed forces in 1985. It features 5V55R missiles with an engagement range of up to 90 kilometers (56 miles) and designed to lock in on a target after launch using an active detection system that steers the missile directly at the target. An S-300 battalion comprises up to six mobile launchers, according to estimates by military experts. Kazakhstan reportedly has several S-300 systems deployed, mainly around the capital, Astana. Moscow signed an agreement to set up an integrated regional air defense network with Kazakhstan last year. Russia has such a network with Belarus, while a similar deal with Armenia has been in the works for some time.