nuclear war

[Sekwo]

if Russia were to use nuclear weapons on anyone, their country would cease to exist very shortly after.
its called retaliation and like I said before, Russia is one country but NATO is many.

Russia knows that, which is why there will be no warning and they will have a plan to totally destroy the western capability. It won't happen in stages. Russia will know it cannot hit all Nato's weapons, but it will attempt to destroy enough of them, to make retaliation pointless.