Public international law concerns the structure and conduct of sovereign states; analogous entities, such as the Holy See; and intergovernmental organizations. To a lesser degree, international law also may affect multinational corporations and individuals, an impact increasingly evolving beyond domestic legal interpretation and enforcement. Public international law has increased in use and importance vastly over the twentieth century, due to the increase in global trade, environmental deterioration on a worldwide scale, awareness of human rights violations, rapid and vast increases in international transportation and a boom in global communications.
The field of study combines two main branches: the law of nations (jus gentium) and international agreements and conventions (jus inter gentes), which have different foundations and should not be confused.
Public international law should not be confused with "private international law", which is concerned with the resolution of conflict of laws. In its most general sense, international law "consists of rules and principles of general application dealing with the conduct of states and of intergovernmental organizations and with their relations inter se, as well as with some of their relations with persons, whether natural or juridical."
Read more about Public International Law: History, International Law Sources, International Treaties, Statehood and Responsibility, International Human Rights, International Courts and Enforcement, International Legal Theory
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