This Adelphi book, through its collection of earlier analysis, helps the reader to understand the evolution of Japanese strategic thought from the 1960s until today, and shines a light on the continuities and changes in this thinking. New, original analysis of the material seeks to identify areas where such thinking was prescient and remains relevant to the contemporary strategic environment, and other areas where predictions failed or assumptions were proved wrong. These new essays were also informed by interviews of Japanese senior scholars and diplomats who spent time with the IISS.