The law of nations defines a "sovereign state" as
§ 4. What are sovereign states.
Every nation that governs itself, under what form soever,
without dependence on any foreign power, is a Sovereign State, Its rights are naturally the same as those of any other state. Such are the moral persons who live together in a natural society, subject to the law of nations. To give a nation a right to make an immediate figure in this grand society, it is sufficient that it be really sovereign and independent, that is, that it govern itself by its own authority and laws.
http://www.constitution.org/vattel/vattel_01.htm
The United States government depends on a foreign power (private central bank) to sustain it. Therefore it is not a sovereign state.
My question then is does the Law Of Nations even apply?