Abstract
The article explores how power shifts in world politics and the emergence of regional powers affect regional security governance. We identify the post-Soviet space and Latin America as two regions where a traditional hegemon and Cold War superpower (the United States and Russia, respectively) has recently been challenged by a rising power (Brazil and China). In both regions, an older regional organization shaped by Cold War dynamics exists alongside a newer organization shaped by the rising power. But do similar patterns of power shifts lead to analogous types and trajectories of security governance? We analyze four security organizations from the two regions: the Organization for Security and Co-operation in Europe (OSCE) and the Shanghai Cooperation Organization (SCO) from the post-Soviet space, and the Organization of American States (OAS) and the Union of South American Nations (UNASUR) from Latin America. We show how power shifts are reflected in (1) the factors driving organizational foundation and transformation, (2) the organizations’ security conceptions and practices, and (3) organizational overlap. Responding to the call for more studies in comparative regionalism, this article contributes to the debate on how powers of various kinds shape regions, regional organizations, and their security priorities, and adds new insights to research on overlapping regionalism.
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