A comparative analysis of regionalism in the Global South: The security and defence dimension of Unasur and the African Union

The aim of this article is to compare Unasur and the African Union with regard to their institutional structure, agenda and performance. Although some scholars have made comparative assessments of regional institutions in the same region or comparisons between regional projects worldwide and the European Union, there are still few academic contributions which develop a cross-regional comparison among regional initiatives from different regions of the Global South. By assessing the cases of Unasur and the African Union, and particularly Unasur’s Defence Council and the AU’s Peace and Security Council, taking into account their institutional structure, performance and limitations, and the role of regional leaders and exogenous actors in both cases, we have elaborated an analytical framework aiming to identify and explain the similarities and differences between two regional institutions outside Europe. Based on the contributions of comparative regionalism and the evaluation of Unasur and the AU, we conduct a comparative analysis of both regional organisations, giving specific attention to their security and defence agendas, moving forward the empirical and analytical agenda of comparative regionalism.