It does not it just needs to help Ukraine. Even if it was www3 it would just be most of the world against Russia.
We’ve been helping Ukraine to the tune of $130 Billion and half or more of that money went to Ukraine’s oligarchs, to pay pensions and who knows where else. The longer this war goes on, the chances increase of a world war.
Maybe you should sign up to go fight in Ukraine if you are so gung-ho