Sovereignty is the quality of having an independent authority over a geographic area, such as a territory. It can be found in a power to rule and make laws that rests on a political fact for which no pure legal definition can be provided. In theoretical terms, the idea of "sovereignty", historically, from Socrates Thomas Hobbes, has always necessitated a moral imperative on the entity exercising it.
For centuries past, the idea that a state could be sovereign was always connected to its ability to guarantee the best interests of its own citizens. Thus, if a state could not act in the best interests of its own citizens, it could not be thought of as a “sovereign” state