Discussion is nugatory
All discussion of such topics is really a waste of breath. The only practical rule you need to know, and keep in mind, is that government is always right, and has the right to do absolutely anything (that it has the physical power to do).
Admittedly there are layers and layers of impressive-looking laws, treaties, constitutions and precedents forbidding governments to be naughty. But those are never enforced - they are purely ornamental.
If you should be in doubt, pick a law, treaty, constitution or precedent and just try getting it enforced against a government that is cheerfully ignoring it.
"[Y]ou know as well as we do that right, as the world goes, is only in question between equals in power, while the strong do what they can and the weak suffer what they must”...