International Law International law is the body of legal rules that apply between sovereign states and such other entities as have been granted international personality (status acknowledged by the international community). The rules of international law are of a normative character, that is, they prescribe towards conduct, and are potentially designed for authoritative interpretation by an international judicial authority and by being capable of enforcement by the application of external sanctions. The International Court of Justice is the principal judicial organ of the United Nations, which succeeded the Permanent Court of International Justice after World War II. Article 9