Book excerpt: Current interest in Britain's imperial past and the loss of her formal empire since World War II is substantial. This book, the second of a two-part study, brings together a collection of original and hitherto unpublished source material, throwing light on the approaches of those politicians, civil servants and expert advisers who were responsible for Britain's changing relations with her colonies and the Commonwealth. Major themes touched on include the impact on the empire of the international upheavals of the 1950s, the place of colonies in Britain's strategic defence planning, problems of colonial economic development, and relations with the USA.