> why would they not also use nukes against supplies staging points in NATO countries, or even against the nuclear forces of NATO countries? Because the US/UK/

> why would they not also use nukes against supplies staging points in NATO countries, or even against the nuclear forces of NATO countries? Because the US/UK/France may react if Ukraine is nuked. If Poland (or Germany/France) is nuked, the response is both nuclear and automatic. That is, nuking Poland is like nuking Washington DC. It's a great way to make sure Moscow exists only in history books. Nuking Ukraine is far more likely not to result in a serious response.