The Institute of Pacific Relations was a pioneering intellectual-political organization that shaped public knowledge and both elite and popular discourse throughout the Asia-Pacific region and beyond during the inter-war years. Inspired by Wilsonian internationalism after the 1919 formation of the League of Nations, it grew to become an international and national non-governmental think-tank providing expertise on Asia and the Pacific. This book investigates post-League Wilsonian internationalism with respect to two critical issues: the nation state and the conception of the Asia-Pacific region, issues that broach a range of contentious subjects including colonialism, Orientalism, racism and war. Akami's study of the Institute of Pacific Relations offers insight into the formation of the dominant ideologies and institutions of regional and international politics in the Pacific during the inter-war years, and provides an interesting perspective on Japan's relations with countries including the USA and Australia.