True, but what does the madman think and do?
As the war in Ukraine is about to head into its sixth month, the ferocity with which it is fought shows no signs of abating – neither on the battlefield
asiatimes.com
So far Russia has threatened everyone with just about every term imaginable, like the "swift and dire consequences" to Finland if they
considered attempted joined NATO and the thinly veiled threat of nuking London and so on.
*IF* Russia were to deploy tactical nukes in Ukraine, there is the Budapest Memorandum (which Russia has violated in 2014 and again this year) that gives the U.S. and UK legal right to respond if Russia does so.
And *technically* speaking, the U.S. and UK (not NATO) have been justified in getting on the ground in Ukraine since February and providing military aid is well within the momeorandum's framework.
Here's the first five (of six) points to the memorandum:
1. Respect Ukrainian independence and sovereignty in the existing borders.
2. Refrain from the threat or the use of force against Ukraine.
3. Refrain from economic coercion designed to subordinate to their own interest the exercise by Ukraine of the rights inherent in its sovereignty and thus to secure advantages of any kind.
4. Seek immediate Security Council action to provide assistance to Ukraine if they "should become a victim of an act of aggression or an object of a threat of aggression in which nuclear weapons are used".
5. Refrain from the use of nuclear arms against Ukraine.