Do you think that Russia wants to Kickstart a nuclear war considering they would start the war? The reason why Russia hasn't used nukes against Ukraine is simp

Do you think that Russia wants to Kickstart a nuclear war considering they would start the war? The reason why Russia hasn't used nukes against Ukraine is simple: it would cause Russia to be isolated completely from China and even seen as a unhinged potential enemy and it would most likely be seen as an attack on nato and if nothing else would normalize nuke proliferation as now countries who don't have nukes sees that a new precedent.