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.
Public international law is usually distinguished from "private international law", which concerns 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."
- 1 History
- 2 International relations
- 3 Social and economic policy
- 4 Conflict and force
- 5 Courts and enforcement
- 6 International legal theory
- 7 See also
- 8 Notes
- 9 References
- 10 External links
Beginning with the Peace of Westphalia in 1648, the 17th, 18th and 19th centuries saw the growth of the concept of the sovereign "nation-state", which consisted of a nation controlled by a centralized system of government. The concept of nationalism became increasingly important as people began to see themselves as citizens of a particular nation with a distinct national identity. Until the mid-19th century, relations between nation-states were dictated by treaty, agreements to behave in a certain way towards another state, unenforceable except by force, and not binding except as matters of honor and faithfulness. But treaties alone became increasingly toothless and wars became increasingly destructive, most markedly towards civilians, and civilized peoples decried their horrors, leading to calls for regulation of the acts of states, especially in times of war.
Perhaps the first instrument of modern public international law was the Lieber Code, passed in 1863 by the Congress of the United States, to govern the conduct of US forces during the United States Civil War and considered to be the first written recitation of the rules and articles of war, adhered to by all civilized nations, the precursor of public international law. Part of the Code follows:
"Military necessity, as understood by modern civilized nations, consists in the necessity of those measures which are indispensable for securing the ends of the war, and which are lawful according to the modern law and usages of war. Military necessity admits of all direct destruction of life or limb of armed enemies, and of other persons whose destruction is incidentally unavoidable in the armed contests of the war; it allows of the capturing of every armed enemy, and every enemy of importance to the hostile government, or of peculiar danger to the captor; it allows of all destruction of property, and obstruction of the ways and channels of traffic, travel, or communication, and of all withholding of sustenance or means of life from the enemy; of the appropriation of whatever an enemy's country affords necessary for the subsistence and safety of the Army, and of such deception as does not involve the breaking of good faith either positively pledged, regarding agreements entered into during the war, or supposed by the modern law of war to exist. (...But...) Men who take up arms against one another in public war do not cease on this account to be moral beings, responsible to one another and to God. Military necessity does not admit of cruelty—that is, the infliction of suffering for the sake of suffering or for revenge, nor of maiming or wounding except in fight, nor of torture to extort confessions. It does not admit of the use of poison in any way, nor of the wanton devastation of a district. It admits of deception, but disclaims acts of perfidy; and, in general, military necessity does not include any act of hostility which makes the return to peace unnecessarily difficult."
This first statement of the previously uncodified rules and articles of war led to the first prosecution for war crimes—in the case of United States prisoners of war held in cruel and depraved conditions at Andersonville, Georgia, in which the Confederate commandant of that camp was tried and hanged, the only Confederate soldier to be punished by death in the aftermath of the entire Civil War.
In the years that followed, other states subscribed to limitations of their conduct, and numerous other treaties and bodies were created to regulate the conduct of states towards one another in terms of these treaties, including, but not limited to, the Permanent Court of Arbitration in 1899; the Hague and Geneva Conventions, the first of which was passed in 1864; the International Court of Justice in 1921; the Genocide Convention; and the International Criminal Court, in the late 1990s. Because international law is a relatively new area of law its development and propriety in applicable areas are often subject to dispute.
Under article 38 of the Statute of the International Court of Justice, public international law has three principal sources: international treaties, custom, and general principles of law. In addition, judicial decisions and teachings may be applied as "subsidiary means for the determination of rules of law".
International treaty law comprises 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), under the aegis of the United Nations. 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. Certain norms of international law achieve the binding force of peremptory norms (jus cogens) as to include all states with no permissible derogations.
- Colombia v Perú  ICJ 6, recognising custom as a source of international law, but a practice of giving asylum was not part of it.
- Belgium v Spain  ICJ 1, only the state where a corporation is incorporated (not where its major shareholders reside) has standing to bring an action for damages for economic loss.
Where there are disputes about the exact meaning and application of national laws, it is the responsibility of the courts to decide what the law means. In international law interpretation is within the domain of the protagonists, but may also be conferred on judicial bodies such as the International Court of Justice, by the terms of the treaties or by consent of the parties. It is generally the responsibility of states to interpret the law for themselves, but the processes of diplomacy and availability of supra-national judicial organs operate routinely to provide assistance to that end. Insofar as treaties are concerned, the Vienna Convention on the Law of Treaties writes on the topic of interpretation that:
- "A treaty shall be interpreted in good faith in accordance with the ordinary meaning to be given to the terms of the treaty in their context and in the light of its object and purpose." (article 31(1))
This is actually a compromise between three different theories of interpretation:
- The textual approach, a restrictive interpretation, which bases itself on the "ordinary meaning" of the text; that approach assigns considerable weight to the actual text.
- The subjective approach, which takes into consideration i. the idea behind the treaty, ii. treaties "in their context", and iii. what the writers intended when they wrote the text.
- A third approach, which bases itself on interpretation "in the light of its object and purpose", i.e. the interpretation that best suits the goal of the treaty, also called "effective interpretation".
These are general rules of interpretation; specific rules might exist in specific areas of international law.
- Greece v United Kingdom  ICJ 1, ICJ had no jurisdiction to hear a dispute between the UK government and a private Greek businessman under the terms of a treaty.
- United Kingdom v Iran  ICJ 2, the ICJ did not have jurisdiction for a dispute over the Anglo-Iranian Oil Co. being nationalised.
- Oil Platforms case (Islamic Republic of Iran v United States of America)  ICJ 4, rejected dispute over damage to ships which hit a mine.
Statehood and responsibility
Public international law establishes the framework and the criteria for identifying states as the principal actors in the international legal system. As the existence of a state presupposes control and jurisdiction over territory, international law deals with the acquisition of territory, state immunity and the legal responsibility of states in their conduct with each other. International law is similarly concerned with the treatment of individuals within state boundaries. There is thus a comprehensive regime dealing with group rights, the treatment of aliens, the rights of refugees, international crimes, nationality problems, and human rights generally. It further includes the important functions of the maintenance of international peace and security, arms control, the pacific settlement of disputes and the regulation of the use of force in international relations. Even when the law is not able to stop the outbreak of war, it has developed principles to govern the conduct of hostilities and the treatment of prisoners. International law is also used to govern issues relating to the global environment, the global commons such as international waters and outer space, global communications, and world trade.
In theory all states are sovereign and equal. As a result of the notion of sovereignty, the value and authority of international law is dependent upon the voluntary participation of states in its formulation, observance, and enforcement. Although there may be exceptions, it is thought by many international academics that most states enter into legal commitments with other states out of enlightened self-interest rather than adherence to a body of law that is higher than their own. As D. W. Greig notes, "international law cannot exist in isolation from the political factors operating in the sphere of international relations".
Traditionally, sovereign states and the Holy See were the sole subjects of international law. With the proliferation of international organizations over the last century, they have in some cases been recognized as relevant parties as well. Recent interpretations of international human rights law, international humanitarian law, and international trade law (e.g., North American Free Trade Agreement (NAFTA) Chapter 11 actions) have been inclusive of corporations, and even of certain individuals.
The conflict between international law and national sovereignty is subject to vigorous debate and dispute in academia, diplomacy, and politics. Certainly, there is a growing trend toward judging a state's domestic actions in the light of international law and standards. Numerous people now view the nation-state as the primary unit of international affairs, and believe that only states may choose to voluntarily enter into commitments under international law, and that they have the right to follow their own counsel when it comes to interpretation of their commitments. Certain scholars[who?] and political leaders feel that these modern developments endanger nation states by taking power away from state governments and ceding it to international bodies such as the U.N. and the World Bank, argue that international law has evolved to a point where it exists separately from the mere consent of states, and discern a legislative and judicial process to international law that parallels such processes within domestic law. This especially occurs when states violate or deviate from the expected standards of conduct adhered to by all civilized nations.
A number of states place emphasis on the principle of territorial sovereignty, thus seeing states as having free rein over their internal affairs. Other states oppose this view. One group of opponents of this point of view, including many European nations, maintain that all civilized nations have certain norms of conduct expected of them, including the prohibition of genocide, slavery and the slave trade, wars of aggression, torture, and piracy, and that violation of these universal norms represents a crime, not only against the individual victims, but against humanity as a whole. States and individuals who subscribe to this view opine that, in the case of the individual responsible for violation of international law, he "is become, like the pirate and the slave trader before him, hostis humani generis, an enemy of all mankind", and thus subject to prosecution in a fair trial before any fundamentally just tribunal, through the exercise of universal jurisdiction.
Though the European democracies tend to support broad, universalistic interpretations of international law, many other democracies have differing views on international law. Several democracies, including India, Israel and the United States, take a flexible, eclectic approach, recognizing aspects of public international law such as territorial rights as universal, regarding other aspects as arising from treaty or custom, and viewing certain aspects as not being subjects of public international law at all. Democracies in the developing world, due to their past colonial histories, often insist on non-interference in their internal affairs, particularly regarding human rights standards or their peculiar institutions, but often strongly support international law at the bilateral and multilateral levels, such as in the United Nations, and especially regarding the use of force, disarmament obligations, and the terms of the UN Charter.
- Case Concerning United States Diplomatic and Consular Staff in Tehran  ICJ 1
- Democratic Republic of the Congo v Belgium  ICJ 1
Territory and the sea
- Territorial dispute
- Libya v Chad  ICJ 1
- United Kingdom v Norway  ICJ 3, the Fisheries case, concerning the limits of Norway's jurisdiction over neighbouring waters
- Peru v Chile (2014) dispute over international waters.
- Bakassi case  ICJ 2, between Nigeria and Cameroon
- Burkina Faso-Niger frontier dispute case (2013)
- United Nations Convention on the Law of the Sea
- Corfu Channel Case  ICJ 1, UK sues Albania for damage to ships in international waters. First ICJ decision.
- France v United Kingdom  ICJ 3
- Germany v Denmark and the Netherlands  ICJ 1, successful claim for a greater share of the North Sea continental shelf by Germany. The ICJ held that the matter ought to be settled, not according to strict legal rules, but through applying equitable principles.
- Case concerning maritime delimitation in the Black Sea (Romania v Ukraine)  ICJ 3
- United Nations
- World Trade Organisation
- International Labour Organisation
- European Union
- G7 and G20
Social and economic policy
- Netherlands v Sweden  ICJ 8, Sweden had jurisdiction over its guardianship policy, meaning that its laws overrode a conflicting guardianship order of the Netherlands.
- Liechtenstein v Guatemala  ICJ 1, the recognition of Mr Nottebohm's nationality, connected to diplomatic protection.
- Italy v France, United Kingdom and United States  ICJ 2
- Universal Declaration of Human Rights
- Croatia–Serbia genocide case (2014) ongoing claims over genocide.
- Bosnia and Herzegovina v Serbia and Montenegro  ICJ 2
- International Labour Organization
- ILO Conventions
- Declaration of Philadelphia of 1944
- Declaration on Fundamental Principles and Rights at Work of 1998
- United Nations Convention on the Protection of the Rights of All Migrant Workers and Members of Their Families
- the Convention on the Elimination of All Forms of Racial Discrimination 1965
- Convention on the Elimination of All Forms of Discrimination Against Women 1981);
- the Convention on the Rights of Persons with Disabilities 2008
Development and finance
Conflict and force
War and armed conflict
- Nicaragua v. United States  ICJ 1
- International Court of Justice advisory opinion on the Legality of the Threat or Use of Nuclear Weapons
- First Geneva Convention of 1949, Amelioration of the Condition of the Wounded and Sick in Armed Forces in the Field, (first adopted in 1864)
- Second Geneva Convention of 1949, Amelioration of the Condition of Wounded, Sick and Shipwrecked Members of Armed Forces at Sea (first adopted in 1906)
- Third Geneva Convention of 1949, Treatment of Prisoners of War, adopted in 1929, following from the Hague Conventions of 1899 and 1907.
- Prisoner of war
- Fourth Geneva Convention of 1949, Protection of Civilian Persons in Time of War.
International criminal law
|This section requires expansion. (October 2012)|
Courts and enforcement
It is probably the case that almost all nations observe almost all principles of international law and almost all of their obligations almost all the time.
Since international law has no established compulsory judicial system for the settlement of disputes or a coercive penal system, it is not as straightforward as managing breaches within a domestic legal system. However, there are means by which breaches are brought to the attention of the international community and some means for resolution. For example, there are judicial or quasi-judicial tribunals in international law in certain areas such as trade and human rights. The formation of the United Nations, for example, created a means for the world community to enforce international law upon members that violate its charter through the Security Council.
Since international law exists in a legal environment without an overarching "sovereign" (i.e., an external power able and willing to compel compliance with international norms), "enforcement" of international law is very different from in the domestic context. In many cases, enforcement takes on Coasian characteristics, where the norm is self-enforcing. In other cases, defection from the norm can pose a real risk, particularly if the international environment is changing. When this happens, and if enough states (or enough powerful states) continually ignore a particular aspect of international law, the norm may actually change according to concepts of customary international law. For example, prior to World War I, unrestricted submarine warfare was considered a violation of international law and ostensibly the casus belli for the United States' declaration of war against Germany. By World War II, however, the practice was so widespread that during the Nuremberg trials, the charges against German Admiral Karl Dönitz for ordering unrestricted submarine warfare were dropped, notwithstanding that the activity constituted a clear violation of the Second London Naval Treaty of 1936.
Apart from a state's natural inclination to uphold certain norms, the force of international law comes from the pressure that states put upon one another to behave consistently and to honor their obligations. As with any system of law, many violations of international law obligations are overlooked. If addressed, it may be through diplomacy and the consequences upon an offending state's reputation, submission to international judicial determination, arbitration, sanctions or force including war. Though violations may be common in fact, states try to avoid the appearance of having disregarded international obligations. States may also unilaterally adopt sanctions against one another such as the severance of economic or diplomatic ties, or through reciprocal action. In some cases, domestic courts may render judgment against a foreign state (the realm of private international law) for an injury, though this is a complicated area of law where international law intersects with domestic law.
It is implicit in the Westphalian system of nation-states, and explicitly recognized under Article 51 of the Charter of the United Nations, that all states have the inherent right to individual and collective self-defense if an armed attack occurs against them. Article 51 of the UN Charter guarantees the right of states to defend themselves until (and unless) the Security Council takes measures to keep the peace.
Violations of the UN Charter by members of the United Nations may be raised by the aggrieved state in the General Assembly for debate. The General Assembly cannot make binding resolutions, only 'recommendations', but through its adoption of the "Uniting for Peace" resolution (A/RES/377 A), of 3 November 1950, the Assembly declared that it has the power to authorize the use of force, under the terms of the UN Charter, in cases of breaches of the peace or acts of aggression, provided that the Security Council, owing to the negative vote of a permanent member, fails to act to address the situation. The Assembly also declared, by its adoption of resolution 377 A, that it could call for other collective measures—such as economic and diplomatic sanctions—in situations constituting the milder "threat to the Peace".
The Uniting for Peace resolution was initiated by the United States in 1950, shortly after the outbreak of the Korean War, as a means of circumventing possible future Soviet vetoes in the Security Council. The legal significance of the resolution is unclear, given that the General Assembly cannot issue binding resolutions. However, it was never argued by the "Joint Seven-Powers" that put forward the draft resolution, during the corresponding discussions, that it in any way afforded the Assembly new powers. Instead, they argued that the resolution simply declared what the Assembly's powers already were, according to the UN Charter, in the case of a dead-locked Security Council. The Soviet Union was the only permanent member of the Security Council to vote against the Charter interpretations that were made law by the Assembly's adoption of resolution 377 A.
Alleged violations of the Charter can also be raised by states in the Security Council. The Security Council could subsequently pass resolutions under Chapter VI of the UN Charter to recommend the "Pacific Resolution of Disputes." Such resolutions are not binding under international law, though they usually are expressive of the Council's convictions. In rare cases, the Security Council can adopt resolutions under Chapter VII of the UN Charter, related to "threats to Peace, Breaches of the Peace and Acts of Aggression," which are legally binding under international law, and can be followed up with economic sanctions, military action, and similar uses of force through the auspices of the United Nations.
It has been argued that resolutions passed outside of Chapter VII can also be binding; the legal basis for that is the Council's broad powers under Article 24(2), which states that "in discharging these duties (exercise of primary responsibility in international peace and security), it shall act in accordance with the Purposes and Principles of the United Nations". The mandatory nature of such resolutions was upheld by the International Court of Justice (ICJ) in its advisory opinion on Namibia. The binding nature of such resolutions can be deduced from an interpretation of their language and intent.
States can also, upon mutual consent, submit disputes for arbitration by the International Court of Justice, located in The Hague, Netherlands. The judgments given by the Court in these cases are binding, although it possesses no means to enforce its rulings. The Court may give an advisory opinion on any legal question at the request of whatever body may be authorized by or in accordance with the Charter of the United Nations to make such a request. Some of the advisory cases brought before the court have been controversial with respect to the court's competence and jurisdiction.
Often enormously complicated matters, ICJ cases (of which there have been less than 150 since the court was created from the Permanent Court of International Justice in 1945) can stretch on for years and generally involve thousands of pages of pleadings, evidence, and the world's leading specialist public international lawyers. As of June 2009, there are 15 cases pending at the ICJ. Decisions made through other means of arbitration may be binding or non-binding depending on the nature of the arbitration agreement, whereas decisions resulting from contentious cases argued before the ICJ are always binding on the involved states.
Though states (or increasingly, international organizations) are usually the only ones with standing to address a violation of international law, some treaties, such as the International Covenant on Civil and Political Rights have an optional protocol that allows individuals who have had their rights violated by member states to petition the international Human Rights Committee. Investment treaties commonly and routinely provide for enforcement by individuals or investing entities. and commercial agreements of foreigners with sovereign governments may be enforced on the international plane.
International legal theory
International legal theory comprises a variety of theoretical and methodological approaches used to explain and analyse the content, formation and effectiveness of public international law and institutions and to suggest improvements. Some approaches center on the question of compliance: why states follow international norms in the absence of a coercitive power that ensures compliance. Other approaches focus on the problem of the formation of international rules: why states voluntarily adopt international law norms, that limit their freedom of action, in the absence of a world legislature; while other perspectives are policy oriented: they elaborate theoretical frameworks and instruments to criticize the existing norms and to make suggestions on how to improve them. Some of these approaches are based on domestic legal theory, some are interdisciplinary, and others have been developed expressly to analyse international law. Classical approaches to International legal theory are the Natural law, the Eclectic and the Legal positivism schools of thought.
The natural law approach argues that international norms should be based on axiomatic truths. 16th century natural law writer, Francisco de Vitoria, a professor of theology at the University of Salamanca, examined the questions of the just war, the Spanish authority in the Americas, and the rights of the Native American peoples.
In 1625 Hugo Grotius argued that nations as well as persons ought to be governed by universal principle based on morality and divine justice while the relations among polities ought to be governed by the law of peoples, the jus gentium, established by the consent of the community of nations on the basis of the principle of pacta sunt servanda, that is, on the basis of the observance of commitments. On his part, Emmerich de Vattel argued instead for the equality of states as articulated by 18th century natural law and suggested that the law of nations was composed of custom and law on the one hand, and natural law on the other. During the 17th century, the basic tenets of the Grotian or eclectic school, especially the doctrines of legal equality, territorial sovereignty, and independence of states, became the fundamental principles of the European political and legal system and were enshrined in the 1648 Peace of Westphalia.
The early positivist school emphasized the importance of custom and treaties as sources of international law. 16th century Alberico Gentili used historical examples to posit that positive law (jus voluntarium) was determined by general consent. Cornelius van Bynkershoek asserted that the bases of international law were customs and treaties commonly consented to by various states, while John Jacob Moser emphasized the importance of state practice in international law. The positivism school narrowed the range of international practice that might qualify as law, favouring rationality over morality and ethics. The 1815 Congress of Vienna marked the formal recognition of the political and international legal system based on the conditions of Europe.
Modern legal positivists consider international law as a unified system of rules that emanates from the states' will. International law, as it is, is an "objective" reality that needs to be distinguished from law "as it should be." Classic positivism demands rigorous tests for legal validity and it deems irrelevant all extralegal arguments.
- Consular law
- Diplomatic law
- International aviation law
- International criminal law
- International environmental law
- International human rights law
- International humanitarian law
- International space law
- International trade law
- Law of state responsibility
- Rule according to higher law
- United Nations Convention on the Law of the Sea
- Use of force continuum
- Diplomatic recognition
- Environmental agreements
- Global administrative law
- International community
- International Court of Justice
- International Criminal Court
- International Criminal Tribunal for Rwanda
- International Criminal Tribunal for the Former Yugoslavia
- International Labour Organization
- International Law Commission
- International legal theory
- Hans Kelsen
- Laws of war
- Legal status of the Holy See
- List of international public law topics
- List of treaties
- Personal jurisdiction over international defendants in the United States
- Prize law
- Sources of international law
- Sovereign state
- Territorial integrity
- Third World Approaches to International Law (TWAIL)
- United Nations
- United Nations General Assembly Sixth Committee (Legal)
- University for Peace
- World government
- History of public international law
- Columbia Law School, McKeever, 2003 — Definition of International Law
- Greig, D. W., International Law, 2nd edn (Butterworths: London, 1976)
- Janis, M. and Noyes, J. International Law": Cases and Commentary (3rd ed.), Prosecutor v. Furundžija, Page 148 (2006)
- "OHCHR". Web.archive.org. 30 May 2008. Retrieved 9 October 2011.
- "Convention on the Elimination of All Forms of Discrimination against Women". United Nations. Retrieved 9 October 2011.
- "Convention on the Rights of Persons with Disabilities". United Nations. 30 March 2007. Retrieved 9 October 2011.
- Henkin, Louis (1968). How Nations Behave. p. 47.
- United States, United Kingdom, France, Canada, Turkey, Philippines and Uruguay
- United Nations General Assembly Session 5 Proces Verbal A/PV.299 1 November 1950. Retrieved 2008-04-13.
- United Nations General Assembly Session 5 Proces Verbal A/PV.300 2 November 1950. Retrieved 2008-04-13.
- United Nations General Assembly Session 5 Proces Verbal A/PV.301 2 November 1950. Retrieved 2008-04-13.
- United Nations General Assembly Session 5 Proces Verbal A/PV.302 3 November 1950. Retrieved 2008-04-13.
- Bruno Simma and Andreas L.Paulus "Symposium on method in International Law: The Responsibility of Individuals for Human Rights Abuses in Internal Conflicts: A Positivist View" 93 American Journal of International Law 302 (April, 1999)
- I. Brownlie, Principles of Public International Law (7th edn Oxford University Press 2008) ISBN 0199260710
- Dominique Carreau, Droit international, Pedone, 10e édition, 2009 ISBN 9782233005618.
- P.-M. Dupuy & Y. Kerbrat, "Droit international public" (10th ed., Paris, Dalloz, 2010) ISBN 9782247088935
- E. Lawson, and ML Bertucci, Encyclopedia of human rights (2nd edn Taylor & Francis 1996)
- E. Osmanczyk, The encyclopedia of the United Nations and international relations (Taylor & Francis 1990)
- M. N. Shaw, International Law (5th edn Cambridge University Press 2003)
- Rafael Domingo Osle, The New Global Law (Cambridge University Press 2010)
- Public International Law – Resources
- A Brief Primer on International Law With cases and commentary. Nathaniel Burney, 2007.
- American Society of International Law – 100 Ways International Law Shapes Our Lives
- Department of Public International Law, Graduate Institute of International and Development Studies, Geneva
- American Society of International Law – Resource Guide (Introduction)
- International Law Details
- International Law Observer – Blog dedicated to reports and commentary on International Law
- Official United Nations website
- Official UN website on International Law
- Official website of the International Court of Justice
- Opinio Juris – Blog on International Law and International Relations
- United Nations Treaty Collection
- UN – Audiovisual Library of International Law
- The European Institute for International Law and International Relations
- Public International Law as a Form of Private Ordering
- Public International Law, Research Guide, Peace Palace Library
- UNOG Library - Legal Research Guide
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