The Chinese are doing some very advanced philosophizing on the subject of Unrestricted Warfare[1]. It's a remarkably comprehensive view of national conflict, that reminds me of Clausewitz's famous maxim that "war is not merely a political act but a real political instrument, a continuation of political intercourse, a carrying out of the same by other means".
It's an interesting thought experiment to ponder what exactly a nation-state's political objectives would have to be that a nuclear war would be the best way to accomplish them.
[1] https://en.wikipedia.org/wiki/Unrestricted_Warfare