The workload of the International Court of Justice in recent years has increasingly featured cases of disputes classified either as ‘territorial disputes’ or as ‘boundary disputes’, or otherwise involving the Court in considerations of the law relating to acquisition or transmission of territory, or to the creation, location and effect of territorial frontiers. The present survey analyzes the contributions to international law of the Court's decisions in these recent cases. Matters examined include the significance of the terms ‘boundary dispute’ or ‘territorial dispute’; the definition of what constitutes sovereign territory; titles and effectivités as bases for territorial claims; decolonization and the uti possidetis juris; use of natural features or of straight lines as boundaries; and relations across a frontier once established.
