“On the other hand, I wonder if this does not make Vladimir Putin just a wee bit nervous.
The Chinese have never been famous at sea, but they historically do very well on land.”
Russia has nukes and there’s no doubt Vlad would use them. Theoretically, Japan does not and if they did they most likely would not use them. The US will not get involved despite our treaties. We’ve practically stood down the Navy too. We have given China a once in a century window of opportunity.
I doubt any major nuclear power will use nukes against another major nuclear power, unless it can be 100% confident that its first strike will wipe out its adversary's ability to retaliate with nukes. Any such war will end up being a bloody conventional war. Ultimately, the war won't go nuclear because each country's population is being held hostage.