The work of Air Defense units of S-400, Buk and S-1s against, I think, target missiles (shown in the beginning) RM-75, Mach=4 capable targets. Caucasus-2020 exercises commenced and first videos are being released by Russia's MoD. Military porn at its best.
Enjoy. An innocent fun.
UPDATE: Arktika is on her way to Arctic Ocean and its ice-cap. (In Russian, but visuals are awesome).
She is big. The largest ice-breaker in history.