Kawashima draws on previously unseen archival materials from interwar Japan as he describes how Korean migrants struggled against various recruitment practices, unfair and discriminatory wages, sudden firings, racist housing practices, and excessive bureaucratic red tape. Demonstrating that there was no single Korean “minority,” he reveals how Koreans exploited fellow Koreans and how the stratification of their communities worked to the advantage of state and capital. However, Kawashima also describes how, when migrant workers did organize—as when they became involved in Rōsō (the largest Korean communist labor union in Japan) and in Zenkyō (the Japanese communist labor union)—their diverse struggles were united toward a common goal. In The Proletarian Gamble, his analysis of the Korean migrant workers' experiences opens into a much broader rethinking of the fundamental nature of capitalist commodity economies and the analytical categories of the proletariat, surplus populations, commodification, and state power.