The article presents an analysis of the current configuration of power in the international scenario, divided between the center (hegemonic and not hegemonic) and the periphery (and its subdivisions). At length, a panorama of strategic perceptions of each of the subdivisions of the international system, especially in its relation with Brazil, Argentina and Mercosul, is traced. At the end, the article analyses the current situation and prospects for defense and security policies of Brazil, Argentina and Mercosul.
Defense policy; Security policy; Brazil; Argentina; Mercosul