As I recall, the Union of Soviet Socialist Republics ceased to exist some time ago.
The craphead Russians invaded Ukraine, get it? I really don’t care if the Ukrainian government all used drugs - the Russians are the aggressors, period.
Thank you, Captain Obvious! What's your point?
Is the United States obligated by treaty to come to Ukraine's defense? No? Then maybe you can list some of the "US vital interests" in Ukraine, that might justify our military intervention (with the associated risk of nuclear war). Is it a long list, or short? Or perhaps you think the US really is 'The World's Policeman' and that we have a moral obligation to get involved? If so, maybe you should run over to Wikipedia, and check out their list of active wars - Russia/Ukraine might have to wait, while Uncle Sam's 'woke' military slaps around 30 or 40 other countries, who were already in line...
Is the United States obligated by treaty to come to Ukraine’s defense? No?
***Uhh, yes. We signed a sovereignty assurance agreement, they honored it, the Russians violated it, and we’re abrogating it.
https://en.wikipedia.org/wiki/Budapest_Memorandum_on_Security_Assurances