You should move away from this nuke discussion. You are wasting your time. Putin would never resort to nukes. Many red-lines have been crossed and his bluffs have been called and they've never used nukes.Nukes have not been used all these decades not because of some gentlemanly agreement, instead because of nuclear proliferation and mutual deterrence through the threat of nuclear mutual annihilation. That was crystallised and formalised by treaties and mutual respect and restraint in SOP.
The problem is that the current crop of leaders in NATO are all spoilt rich brats who have been systematically shielded from all form of personal responsibility and accountability for their actions since birth by the wealth and power of their families to the point that they simply cannot conceive of the notion of having to suffer consequences for their choices and actions now that they are in positions of power and influence.
So they only think about how they can hurt the Russians with reckless disregard for what the Russians might be able to do to hurt them right back, to the point where not only did they play salami slicing game against Russia’s nuclear deterrence, but now daring to do an alpha strike on their air based leg of the nuclear triad.
Russia can use nukes in Ukraine and get away with it because Ukraine doesn’t have any nukes to nuke them back with. If anyone else was moronic enough to use nukes against Russia, the Russians have the nukes to nuke them right back. Which is why they don’t fear anyone else threatening them with nukes. Unless you go after Russia’s nuclear retaliation capabilities like Ukraine just did in a massive way that actually materially compromises Russian nuclear deterrence. That’s the red line that no nuclear power can afford to allow crossed without answer. And the answer needs to be suitable disproportional to discourage further such attempts to undermine Russian nuclear deterrence.
From the US explicitly providing targeting data on Russian soil to Ukraine long range targets to even just recently an attempt on Putin's life while he was flying to Kursk.
[If anything Putin could have nuked Ukraine forces inside Kursk during their invasion. 10K UA forces were in that bulge at the height of it. That could have eliminated all the fighting power and sent a powerful message]
Russia is severely weak conventional and for too long uses nuclear as shield and a sword to threaten others but self-preservation rules and Putin doesn't want to start a nuclear war that potentially invites his own destruction.
I think we all falsely equates internally modern Russia to Cold War USSR. They are not the same and modern Russia is severely weak that appropriately should be termed as a local regional power like Turkey or Israel.
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