I think it really depends. E.g. from the Western perspective, only US, UK, France, Russia and China have signed the treaty from nuclear countries. India or Pa

I think it really depends. E.g. from the Western perspective, only US, UK, France, Russia and China have signed the treaty from nuclear countries. India or Pakistan are not part of the treaties and for some reason, we don't see big problems. There is only China left who might leave the treaty in the first place, anymore. And we are so dependent of the China, that there is no guarantee for consequences. Should we treat China then equally than India? What that means? Also, leaving the treaty does not mean that countries start massively increasing their arsenal. There will be just a lack of inspections and information exchange.