This article examines the extraterritorial application of the European Convention on Human Rights (ECHR) during international armed conflict. After a brief discussion of the different historic origins of international human rights law and international humanitarian law (IHL), the article examines the test for establishing jurisdiction under Article 1 of the ECHR. A critical analysis of some contentious legal issues regarding derogations completes the picture of when jurisdiction is established. Subsequently, the article considers the interaction between the ECHR and IHL in international armed conflicts and concludes by arguing that a balance must be found between protecting human rights in international armed conflicts while not interfering unduly with IHL.