In this final chapter, we contend that despite the fact that differing constructions of the Indo-Pacific occur across matrices of space, time, and selected world-view methodologies, it is important to conclude that not all constructions and geopolitical imaginations are equal. Consequently, we prioritize the ongoing relationships between the US and China: these will largely determine the geopolitics of the Indo-Pacific region in the twenty-first century and beyond. Also, we end the book on a constructive note, exploring a regional institutional model which is the closest we have yet experienced in terms of being representative of Indo-Pacific nation-states, from the western Indian Ocean, to the western periphery of the Pacific. The case of the Indian Ocean Rim Association, now over twenty years since its inception, is an exemplar (however imperfect) of the maritime regional organization wrestling with the daily realities of what it is to operate in a new Indo-Pacific world.