Of course there can be - likely with a gentleman's understanding that neither would use them, and each side careful to not back the other into a corner where they'd have nothing left to lose.
It's just going to be your typical meatgrinder and attrition warfare.
I think the biggest risk of war between nuclear powers is from mistakes and accidents that might trigger nuclear escalation/MAD. Systems can malfunction. War can spiral out of control, fast.
We had some very close calls in the cold war.
>"gentleman's understanding that neither would use them, and each side careful to not back the other into a corner where they'd have nothing left to lose."
So we'll just grind each other into a halt? And what is the end state? What a BS.
Yeah, arguably the war in Ukraine is teaching everyone who is listening that nobody is willing to be the first to use nukes and destroy the planet, which means that nuclear powers can actually fight wars--which is incredibly dangerous, of course.