ABSTRACT
This chapter explores the nature and extent of security cooperation between the Economic Community of West African States (ECOWAS) and the African Union (AU). This is based on the important roles both organizations play at the sub-regional and regional levels with regard to conflict mediation and the management of Africa's peace and security. Particular attention is focused on Africa's evolving security regionalism with regard to the complex transformations taking place within the continent and its place in a rapidly globalizing post-Cold War world.
