The book is a systematic study of the China-Britain relationship during the 1942–1949 period with a particular focus on the two countries’ discussions over both the 1943 Sino-British treaty and the discarded Sino-British commercial treaty, the future of Hong Kong, and the political status of Tibet. These were dominated by two underlying themes: the elimination of the British imperialist position in China and the establishment of an equal and reciprocal bilateral relationship. The negotiations started promisingly in 1942–1943, but, by 1949, had failed to reach a satisfactory settlement. Behind the failure lay a complex set of domestic considerations and external factors, including the powerful infl uence of the United States. Even after seven decades, the failure still has a contemporary impact. Recent Sino-British disputes over the Hong Kong Anti-Extradition Law Amendment Bill Movement and incessant Indo-Chinese confl icts and skirmishes over their unsettled borders all attest to the enduring legacy of the years 1942–1949 as setting the scene for subsequent Sino-British and Sino-Indian relations. From this perspective, the history has never left us.