This Article discusses natural law, the foundation of many international law principles. First, it describes the natural law and its bearing on the practice of international law. Second. it describes the concept of “the common good,” a foundation of natural law. Third, it introduces the term ”solidarity” and its relation to achieving the common good. Fourth, it describes the concept of ”subsidi...

contemporary international law introduces a notion of peremptory norms comparable to hierarchy of norms in national legal system. a jus cogens is a norm of international law considered so fundamental that it overrides all other sources of international law. a rule of jus cogens has a specific process of emergence that will be essentially different from other sources of international law which r...