This chapter documents and reflects on the development, operationalization and institutionalization of a pivotal pillar of the peace and security architecture, the Continental Early Warning System (CEWS). This structure is core to the fulfillment of the Union’s conflict prevention, management and resolution mandates as without the capacity to monitor, analyze and develop tailored and timely response and policy options to threats to peace and security on the Continent, the African Union (AU) would be severely limited in its ability to address these appropriately.