You're trying to apply the logic of interpersonal relationships to those between states. They are not comparable. Individuals have a higher authority to appeal

You're trying to apply the logic of interpersonal relationships to those between states. They are not comparable. Individuals have a higher authority to appeal to for justice. States have only the might of their legions. This bit of eternal wisdom in the Melian Dialogue captures reality well: 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. It's not a moral statement, but a statement of fact. If you want your moral code to mean anything, you'd better be strong enough to establish and defend it.