Originally Posted by
Barksdale Boy
etudiant
China has had such a policy for at least 25 years to my certain knowledge. On 15th April 2020, the Taiwan Affairs Office, an organ of The State Council, repeated it in the form of an article by a leading Chinese nuclear strategy expert, Yang Chengjun, Check out casus belli number 4. It's in Chinese but I'm sure you'll cope. In my experience such articles are cleared at a high level.
No doubt that China has had that policy in the past, but imho they decisively scuppered it when they allowed NK to go nuclear.
That decision means that all other states in the region go nuclear or go extinct.
I honestly still cannot understand why the Chinese allowed it, it is so obviously destructive to any thought of a US/China co-dominium along the Asian rim, but it also kills any Chinese aspirations for local leadership.