International law

International law, deals with the relationships between states, or between persons or entities in different states. It sub-divides into "public international law" and private international law (also called conflict of laws). When used without an adjective, "international law" generally refers to "public international law." Thus, public international law is defined as "the system of law which regulates the activities of entities possessing international personality." This article will concentrate on this aspect.

Sources of International Law

See main article: Sources of International Law.

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International law has three primary sources: international treaties, custom, and general principles of law (cf. Art. 38 of the Statute of the International Court of Justice). International treaty law is comprised of obligations states expressly and voluntarily accept between themselves in treaties. Customary international law is derived from the consistent practice of States accompanied by opinio juris, i.e. the conviction of States that the consistent practice is required by a legal obligation. Judgments of international tribunals as well as scholarly works have traditionally been looked to as persuasive sources for custom in addition to direct evidence of state behavior. Attempts to codify customary international law picked up momentum after the Second World War with the formation of the International Law Commission (ILC). Codified customary law is made the binding interpretation of the underlying custom by agreement through treaty. For states not party to such treaties, the work of the ILC may still be accepted as custom applying to those states. General principles of law are those commonly recognized by the major legal systems of the world.

Related Topics:
Treaties - Second World War - International Law Commission

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Certain norms of international law achieve the binding force of peremptory norms (jus cogens) as to include all states with no permissible derogations. Legal principles common to major legal systems may also be invoked to supplement international law when necessary.

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