Point is, once you are certain of your superiority you dont even need to act on it. The mere threat is sufficient. That is why nukes are so powerful in preventing global conflicts.
Declaration of St. Petersburg, 1868
Hague Convention, 1907
Universal Declaration of Human Rights, 1948
Geneva Conventions, 1949
The Protocols Additional to the Geneva Conventions, 1977,
An of course, UN Security Council resolution 255 (1968) including the 1977 clarification is still supported by USA, UK, Russia which 'positive assurance' against the use of weapons against NNWS.
(Which as an aside makes Trump's recent tweet to end Iran illegal under US law and probably a war crime).
But of course, its precisely the posession of these weapons that makes all these niceties irrelevant.