The Anglo-Japanese Alliance was the first formal agreement of its type reached by a Western 'great' power with a non-Caucasian nation in the modern era. As such, it represented an important milestone diplomatically, strategically and culturally. This book brings together many leading experts who examine the different aspects of the Alliance in its different stages before, during and after the First World War, who explore the reasons for its success and for its end, and who reach a number of interesting and innovative conclusions on the agreement's ultimate importance.