Decisions of international courts and arbitrators, as well as judgments of national courts, are fundamental elements of modern public international law. The International Law Reports is the only publication in the world wholly devoted to the regular and systematic reporting in English of such decisions. It is therefore an absolutely essential work of reference. Volume 201 contains the 2019 judgement on preliminary objections of International Court of Justice in Certain Iranian Assets (Iran v. United States), 2020 judgement of Inter-American Court of Human Rights in the Lhaka Honhat v. Argentina case, and 2021 judgement of the United Kingdom Supreme Court in General Dynamics UK Ltd v. Libya.