Immediately after the end of the Cold War emerged and flourished the geographic concept of Asia-Pacific, a long-held regional order that has brought countries in Asia, Oceania, and the American hemisphere closer based on open regionalism (e.g., APEC and various sub-regional FTAs) and cooperative security (e.g., CSCAP/ARF). Since the Trump administration, however, there has been an abrupt transition to the Indo-Pacific regional concept that has radically replaced the Asia-Pacific. Such transformation raises several interesting questions: Is the Asia-Pacific vision dead? Has the Indo-Pacific frame completely replaced the Asia-Pacific? What are strengths and weaknesses of two competing visions? Can they harmonize? How about Asia? How can the Indo-Pacific regional order deal with the ‘disappearance’ of Asia? This session will be addressing these philosophical and theoretical questions.