Ever since Japan's economy recovered in the 1960s, scholars have been searching for the reasons for its meteoric postwar success. Until now, much research has been based on the study of Japan's society, its political and economic infrastructure, and its particular model of capitalism. But now that American and British government documents from the 1950s have been released, it emerges that the United States - as part of its Cold War economic and military strategy in East Asia - played a large part in assisting Japan out of its economic difficulties, whereas Britain's role seems to have been...