The fourth volume in this magnificent series covers the story of the mails to and from Canadian, British and Indian servicemen captured in Hong Kong, the US Marines and others imprisoned in China, and civilians of many nationalities interned in Hong Kong and China. The principal concentration of Hong Kong mail was to and from the two major POW camps, Shamshuipo, and Argyle Street, and the civilian camp at Stanley. Many examples are shown with various censors and directional markings to and from these and other camps, as well as a considerable variety of inter-camp mail. In China a relatively small number of POWs were held initially in Woosung and then Kiangwan near Shanghai. Mail from and to these camps is illustrated. The civilians were held in a number of Civilian Assembly Centres in Shanghai, Yangchow and North China and mail from and to these camps is illustrated. Profusely illustrated with more than 400 illustrations, mostly in colour.