Management of labor was central to articulating and constructing U.S. colonialism in the southern Philippines. Governed by American military officers for fifteen years (1899–1914), the major island of Mindanao and those of the Sulu Archipelago became sites of intensive race management efforts. Colonial officials identified racialized Muslim and Lumad societies as out of step with the modern world of work and developed myriad programs to address this “problem,” including mandatory service on public works projects, carceral labor, industrial education, and directed markets. Unevenly applied and frequently contested, these initiatives generated a range of responses from local actors. The drive to create disciplined laborers through incentive, coercion, and violence shaped state building in the region and linked it to preoccupations with work and racial reform in other U.S. imperial possessions and the wider colonized world.