Your cite for use of nukes against a conventional foe states that nukes will only be considered for use “when the very existence of the state is threatened.” Are you seriously saying that Ukraine poses an existential threat to Russia? Are you saying that Russia is so weak, and so pathetic, and so backward that Ukraine poses an existential threat?==
Ukraine itself of cause is not considered any existential threat. But backed by NATO it may. If NATO soldiers will involve then even more.
And if they will be a moment when the use of tactical nuke will get great tactical gain and save lifes of Russian soldiers then commanders will use them 100%. Especially they are already there on a tips of Iskander and Kinzhal missiles.
I don’t think so. It would lose what little foreign support it currently has.==
Why that? I think opposite. The use of tactic battlefield low-yield nukes will be open practice very soon. Like using artillary and tactic missiles.
And Russia uses them will create the needed precedent for other countries. I guess China for one will thank Russia.
I know you are a Russian, and that English is not your native language, so your awkward diction is forgivable. I will thus respond to what I THINK you are saying.
You said: “Ukraine itself of cause (course?) is not considered any existential threat. But backed by NATO it may.”
Only if Russia attacks NATO.
“If NATO soldiers will involve then even more.”
It is not an existential threat to Russia to repel Russia from Ukraine. It is merely restoring the 2013 status quo, with which Russia apparently had no problem for over twenty years.
“And if they will be a moment when the use of tactical nuke will get great tactical gain and save lifes of Russian soldiers then commanders will use them 100%.”
Ah, so there does NOT have to be an existential threat to Russia before Russia resorts to the use of nukes.
“Especially they are already there on a tips of Iskander and Kinzhal missiles.”
So, you admit that Russia has already introduced nuclear weapons into the Ukrainian theater but just hasn’t launched them yet.
“The use of tactic battlefield low-yield nukes will be open practice very soon. Like using artillary and tactic missiles.”
It will be open practice for Russia to use them, because you are admitting that Russia cannot win a war without resorting to nukes (unless it wars against some small and defenseless and hapless third-world country).
“And Russia uses them will create the needed precedent for other countries. I guess China for one will thank Russia.”
Again, you admit Russia will resort to using nukes even if it faces no real threat.
Is there any wonder that former Soviet republics and former Soviet satellite states rushed to join NATO as soon as they were rid of the Soviet (Russian) boot on their necks? NO ONE trusts Russia. Russia’s history of abuse towards its neighbors will not soon be forgotten. It’s funny, but Russia’s invasion of Ukraine actually made NATO stronger!
You mentioned China. I suggest to you that China will employ first-use of nukes against Russia before any Western country would.