In big boost to IAF, Russia begins supplying S-400 Air Defense Systems to India

The S-400 Triumf surface-to-air missile system has already entered service in China and Turkey. 

https://ift.tt/eA8V8J The S-400 Triumf surface-to-air missile system has already entered service in China and Turkey.  from Zee News :India National https://ift.tt/3Fk3ju9