Russia tested hypersonic missiles with 300km range during arctic drills.

You seem to be posting these videos in the hope it will demoralise people on here, except it doesn't. Although there are unfortunately many people on here and elsewhere many different places online with their antisocial tendencies, people on here are nevertheless most concerned with the survival and prosperity of their folk. They have no interest in something that would lead to their destruction, such as Communism.