International Law
International law can be considered as the law of the international community, the law that governs relations between States. But it also relates to what international organizations do and, increasingly, it concerns individuals, corporations, NGO's and other non-state actors.
As the world becomes more interdependent and more complex, and as new institutions are put in place to make international law more effective, international law has become an exciting, expanding field. Never before has it been so relied upon, used and developed. Despite their differences in size, power, culture, religion and ideologies, states rely on international law to cooperate and to coexist; they speak the language of international law and international law serves them as an important common language.
This law course will extensively rely on judgments and advisory opinions of the International Court of Justice (ICJ), which is the principal judicial organ of the United Nations (UN).
Having acquired a basic knowledge of international law, you'll find it easier to comprehend this subject in future international law sub-fields, like international human rights, international humanitarian law or international investment law.
This course will teach you what international law is, the role it plays in the world today, how it can be used. You will also gain knowledge to help you better discern legal arguments within the flow of international news and reports.
This course is part of the International Law MicroMasters Program that is designed to give learners a critical understanding of how international relations between States and individuals are dealt with, regarding the law.
- How, and by whom, international law is made, by whom it must be respected, and how it is applied
- What happens when binding rules are breached and how is it possible to seek justice in this world

Pierre d’Argent is full professor at the University of Louvain in Belgium, where he holds the Public International Law Chair. He is also a guest professor at Leiden University in the Netherlands. He is Associate Member of the Institut de droit international and member of the Brussels Bar, acting as special counsel to Foley Hoag LLP. He specializes in advising and representing states before international courts and tribunals. He appeared as counsel before the International Court of Justice and later served the court as first secretary.
He has published extensively in matters relating to international law and has lectured in many universities around the world. He has been director of studies at the Hague Academy of International Law and has taught a specialized course at the Academy. He has contributed to the UN Audiovisual Library of International Law.