I stand corrected, that was in another thread which has some overlap here.
https://boards.straightdope.com/t/ukraine-and-russia-with-trump-still-at-the-helm/959718
One more thing that occurred to me after I stepped down off my soapbox-
If Sixty Percent, 60%, of the entire Russian military is truly involved with the Ukraine issue - - - that does not leave much left for contingency plans. Putin literally does not have the choice of shrugging it off. He would have to shift SOME focus there just because he has very limited possible response ‘just in case’. My understanding is that cold war warriors do not let their tail end hang out in the breeze no matter what.