Problem is I don't think Russia is ever going to agree to to the point of Ukraine becoming a protectorate of the EU without having legal authority to veto EU mi

Problem is I don't think Russia is ever going to agree to to the point of Ukraine becoming a protectorate of the EU without having legal authority to veto EU military intervention in Ukraine. And I severely doubt Ukraine's is going to agree to give up to give up those lands without a security guarantee that Russia can't veto. Sides, Russia's got nukes. It's nuke's are the whole reason why the US and Europe has been reluctant to intervene. If, in this scenario, Russia invades Ukraine again and then simple say that it will launch it's warheads at any nation that attempts to intervene, what then?