Introduction -- International legal personality -- Determining the criteria necessary to satisfy the capacity requirement associated with international legal personality -- Establishing a legal basis for the application of international law to armed groups -- The de facto control theory and the international regulation of armed groups in the absence of directly applicable international treaty law -- The application of international human rights law to armed groups -- The gradated application of international human rights law obligations -- Prosecution, detention, and satisfaction of the right to health by armed groups -- Conclusion.