The reason why no other country has committed themselves to a NFU policy is because of how meaningful words are in international relations. Russia and the U.S.have been no stranger to the use of the implied threat of nuclear war in the pursuit of their own interests. The Cuban missile crisis, for instance, had America very openly stating their willingness to bring about Armageddon if the Soviets didn't listed to their demands, and they were never even threatened with invasion.
By contrast, even the most bellicose of Chinese politicians have refused to bring up their country's arsenal of ICBM's when threatened, and that is a very deliberate choice because they could very easily do so on many occasions, particularly with regards to Taiwan. Moreover, NFU commitments have had a very material effect upon Chinese Nuclear policy. Because of it them the PRC never joined the Cold War Nuclear Arms race and even today China lacks anything like the first-strike capabilities of the U.S. and Russia.
The reason why no other country has committed themselves to a NFU policy is because of how meaningful words are in international relations. Russia and the U.S.have been no stranger to the use of the implied threat of nuclear war in the pursuit of their own interests. The Cuban missile crisis, for instance, had America very openly stating their willingness to bring about Armageddon if the Soviets didn't listed to their demands, and they were never even threatened with invasion.
By contrast, even the most bellicose of Chinese politicians have refused to bring up their country's arsenal of ICBM's when threatened, and that is a very deliberate choice because they could very easily do so on many occasions, particularly with regards to Taiwan. Moreover, NFU commitments have had a very material effect upon Chinese Nuclear policy. Because of it them the PRC never joined the Cold War Nuclear Arms race and even today China lacks anything like the first-strike capabilities of the U.S. and Russia.