Russian S-400 missiles are considered one of the most powerful air defense systems in the world, if not the most powerful. Besides Russia, China and Turkey are currently operating the S-400s, while India is in the process of operationalizing them. Russia To Get 76 Su-57 Stealth Fighters By 2028; Works On ‘Upgraded Comm Suite’ For … Continue reading 5th Country To Acquire S-400 System – After China, Turkey & India, Minsk Looks To Acquire ‘Stealth Killer’ Missiles