Beside the moral and ethical superior stance, unfortunately International Law does not hold against country laws. Hypocrisy rules. International Criminal Court is not recognised by the big bullies https://en.wikipedia.org/wiki/International_Criminal_Court
UN is under siege by the cartel of the 5 early Nuclear Powers for 75 years. Most populous country on Earth, India, that also became a Nuclear Power cannot veto, Germany cannot veto, but France or UK can...