SG Talk

Currently, this is considered the best-selling anti-aircraft artillery combination with missiles in the world and has no rival in the weapons market.

https://static.tintuc.vn/upload/video/20...tsir-s.mp4

Russia systems oredi proved herself in Syria and Ukraine
https://www.thesun.co.uk/wp-content/uplo...?strip=all&w=600&h=400&crop=1

trump launch attack on Syria in 2017

US give warning to russian in Syria before the attack

russian air defense in Syria with their S400 cannot detect those USA missiles


russian was shocked and they stay quiet about it

Yes, the S400 is considered one of the best but nothing is foolproof. It is actually very difficult to intercept a missile /aircraft.