Early Access: Is S-400 the best SAM system out there? (Patreon)

Enjoy this ad-less version of our video. It goes into the details of S-400. how it works, its cons and pros. And it compares it with the other long range SAM competitors from all around the world. There can be only one. Is S-400 really the best?

the link is also here:

https://drive.google.com/open?id=13gOFTSyU6odyg66gd4VO8UgfVhJxFVvL