Jus Gentium Law and Legal Definition

Jus Gentium is the law of nations; international law; universal institution. It is a Roman concept. Jus Gentium can be defined as a system of legal discipline or legal order, consisting of certain legal doctrines and precepts that serve to govern and manage relationship between nations. The Romans used the term in a very wide sense. The law of nations governing the conflict between the laws of different nations is known as jus gentium privatum, or private international law. The law of nations which regulates those matters which nations have with each other is known as jus gentium publicum, or public international law.