ABSTRACT
This chapter considers the inter-organizational relationships between the three most prominent regional organizations operating in the more Russian-centric space of the former USSR: the Collective Security Treaty Organisation (CSTO), Eurasian Economic Union (EEU) and Shanghai Cooperation Organisation (SCO). It examines how the relationships between them are shaped by and shape wider attempts at political region-building in the space between Europe and Asia. The chapter outlines how these regional organizations are spatially orientated in relation to the western, southern and eastern boundaries posited as constituting Eurasia as a politico-region. It details how a distinction between the CSTO/EEU and the SCO in terms of regional boundaries and modes of regulatory regionalism is evident, by analyzing overlap and discontinuity in their membership, organizational designs and primary areas of activity. Some characterize the EEU as the most serious effort at politico-economic integration in the history of post-Soviet regionalism.
