The uncertainties relating to the specific roles of the African Union (AU) and sub-regional organizations have raised debates on how to effectively delimit the responsibilities of African Peace and Security Architecture (APSA) institutions in the context of the ongoing AU Reform. Hence, this policy brief examines the viability of a clear division of labour within APSA as well as the options available to maximise the effectiveness of APSA. The policy brief draws on in-depth analysis of current APSA trends and the perspectives of key stakeholders working within the APSA context.