I don't believe it would start ww3, Russia's military isn't capable enough for that. And I do not believe they would use a nuke, especial against NATO troops on

I don't believe it would start ww3, Russia's military isn't capable enough for that. And I do not believe they would use a nuke, especial against NATO troops on the ground. If you believe Russian doctrine, which they've quoted several times, they would only use nukes if Russia itself is under existential threat. Not that I do believe that, but do you think those who can authorise a nuke really want to end the world and die over not getting to change the government of Ukraine?