The Confederates were "rebels and traitors" it didn't matter. They were treated as soldiers, and let go upon ceasation of hostilities.

Yeah, I don't think that would be repeated. If not summary execution, they would be imprisoned for decades.

Belarus has a Potemkin village army, but they really have internal security forces. Who in a war would fare as well as these OMON columns burned near Kharkiv.

Then just hold exercises on the Western border with Ukraine to divert at least some resources.