Subject: Re: Trump a vacuous moron
...also signal to Ukraine that if they get into a conflict that they started that they'll be on their own.

That's really a non-concern. I think the OP was just making that up to flood the zone with excrement. However, I'm pretty sure that NATO is not required to intervene if a NATO member is the aggressor. They are a defensive alliance, not an offensive one. So if Ukraine was in NATO, and Russia invaded, we'd be obligated to commit our forces. If Ukraine invaded Russia, pretty sure we would be telling them "good luck". Article 5 specifies "attacked nation" (i.e. NATO member), not "attacking nation".