Accessing previously unpublished archival materials, Japan in the World examines the life and diplomatic work of Shidehara Kijuro (1872-1951), situating Shidehara within the context of twentieth century statecraft and international politics. While it was an age of devastating total wars that took a vast toll of civilian lives, the politics and diplomatic history between 1899 and 1949 also saw the light of new developments in international and constitutional law to curtail state sovereignty and reach a peaceful order of international affairs. Japan in the World is an essential resource for understanding that nation's contributions to these world-changing developments.