The Global IR research programme promulgates a borderless ecology of cultures that has only an inside without an outside. This borderless ecology of cultures reinvents the human condition (including the condition of the international ) as perpetually interconnected at the level of consciousness. While Western-centric IR theories depend on (neo-)Kantian philosophies to emphasize the time-space bounded identities of human beings living in visibly divided phenomenal worlds, the de-Kantian philosophies of the Global IR research programme exemplified by the Tianxia, Advaita, and Nishida Kitarös Buddhism-inspired theories recuperate the temporally-spatially indivisible phenomenal-noumenal flow of human life, thereby facilitating back-and-forth movement between the Westdominated one world and the non-West-embodied many worlds . The central objective of the book is to demonstrate how this back-and-forth movement offers opportunities to conceive of and found a new world order that recognizes the temporally-spatially indivisible human condition on earth. The book delineates a set of guiding principles to promote an innovative practice of theory-building and policy-making that transcends the geo-centric limitations of knowledge-production and knowledge-application, thereby establishing the futuristic foundation of the Global IR research programme.