Very in-depth and thoughtful post at E.M. Smith's place. The comments are thoughtful, too.
For the life of me, I can't see what compelling interest the USA has in war with Russia. I can see what the US Military Industrial Complex has with a war like that. And as they say, "War is the health of the State".
But I don't see what's in it for us.
UPDATE 31 January 2023 11:18: Chuck Pergiel has a related and very interesting post about who the chief clowns running US foreign policy are.
Update 31 January 2023 15:35 : Link corrected