The Allied Occupation of Japan lasted from 2 September 1945 to 28 April 1952 and ushered in an era of unprecedented change for that country. Although British Commonwealth participation played only small part in that story – involving only some 30,000 troops from the various Commonwealth countries compared with the vast numbers of the United States Eighth Army – it nevertheless prompts a discussion, hitherto largely undocumented, concerning its role and relevance. In , Ian Nish who himself was a member of BCOF presents papers by twenty-three authors, partly biographical, partly academic, on subjects grouped in five themes: Origins of the Allied Occupation, Attitudes on the Occupation, Personal Views, the Commonwealth and Peace Negotiations, and the Commonwealth and the Japanese Treaties.