Apart from the intrinsic value of understanding the fate of Japanese workers during the war, Japanese labor history in World War II also gives us a non-Western point of comparison for studies of wartime labor in the West. To facilitate that comparison, we should consider government policy, the response of the labor movement, and the conditions of workers during the war. In Japan, labor and economic history periodization of World War II does not conform to the European and American conceptions. For the Japanese, the war began with the outbreak of the “China incident” in 1937; Pearl Harbor, traumatic as it was for the United States, only marks the beginning of a new stage the Japanese call the “Pacific War.” It is not surprising, then, that Japanese labor history begins its wartime phase in 1937. In fact, to comprehend changes during the 1937–45 war, at least brief mention must be made of earlier developments.