Besides the United States, France and The United Kingdom NATO ain't got teeth. France already said
only the US and UK together could put a stop to this. The rest of the NATO countries are flunkies and groupies. Romania, Moldova, Baltics, Poland COMBINED couldn't stop a major Russian offensive that's why their so shook right now and hitting the emergency dial.
The ONE wild card in this would be Germany. If the US and Britain take the muzzle off Germany, Berlin could raise a technologically advanced hardened army within a year and they have the tech to develop nukes themselves. But unfortunately (or fortunately) the Germans are pacificist their constitution prohibits forming a standing army, plus Russia can turn off the gas pipes and it's literally lights out.
The rest are jobber countries too, Spain and Italy aint finna do shyt and Canada might as well be the US lil homie