Iranian Defense Minister Brigadier General Hossein Dehqan said on Thursday that the Russian S-300 missile defense system is enough to defend his country and said Tehran doesn’t intend to purchase the improved S-400 system from Moscow.
The S-400 anti-missile system, known to NATO as the SA-21 "Growler," is said to have a maximum range of 250 miles, and can bring down airplanes at up to 90,000 feet - more than double the height of a cruising commercial airliner.
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