Welcome to Oxford Public International Law

Oxford Public International Law (OPIL) is a comprehensive, single location providing integrated access across our international law services, bringing you one step closer to the perfect research solution.

Our ground-breaking online resources work to speed up research and provide easy access to authoritative content, essential for anyone working in international law.

Discover freely accessible articles regarding the conflict between Russia & Ukraine

Readers wishing to gain a better understanding of the international law topics relevant to the invasion of Ukraine, its international economic and political consequences, and the investigations of international crimes committed during the invasion will find detailed coverage of the key concepts in the Max Planck Encyclopedias of International Law. To assist readers interested in these concepts, the general editors of the Max Planck Encyclopedia of Public International Law (MPEPIL) and the Max Planck Encyclopedia of International Procedural Law (MPEiPro) have selected the following articles of particular importance, which have been made freely available for a limited time. Explore the articles here.