The practice of shared responsibility in international law
Cambridge : Cambridge University Press, 2017
The Africa Union (AU) often conducts its military operations in collaboration with other actors, such as African subregional organisations, and the United Nations. Participation by several parties in AU operations enhances the nominal and operational legitimacy of the mission, but it also expands the scope for committing internationally wrongful acts. The responsibility of the AU vis-à-vis joint actors in these operations will vary according to the extent and nature of involvement, and according to whether an operation is carried out by the AU and other organisations, or by member states of the AU in their own rights.