In 1896 General Valeriano Weyler, leading Spanish imperial forces against a Cuban guerilla insurgency, decided like many imperial commanders from Napoleon to Westmoreland that it's a problem when your enemy consists of irregular forces blended into the general population, and came up with a novel method of separating them out: he'd take the non-militant members of communities off their land and "reconcentrate" them in central locations where he could stop them from helping the guerillas with food and shelter and keep them out of harm's way, in what he called, with a military bureaucrat's gift for dulling a concept with neuter phrasing,
campos de concentración. The policy was, effectively, race-based,
as was the war:
'"...del millón seicientos mil habitantes que aproximadamente había en Cuba cuando empezó esta guerra, unos doscientas mil eran españoles, quinientos mil negros o mulatos, unos ochocientos mil blancos cubanos o criollos y un número no determinado de chinos, jamaicanos, haitianos y otros. Los españoles, con alguna notable excepción en especial dentro del clero, se mantenían fieles a España y en contra de la revolución de los cubanos. Los negros, salvo conductas puntuales, estaban entusiásticamente unidos para apoyar a los rebeldes bajo promesa de abolición de la esclavitud, y por que intuían que al final triunfaría la rebelión contra España...Esperaban que bajo el nuevo régimen tendrían condiciones muy similares a las de la vecina república de Haití... soñaban con una Cuba libre ..."
[Out of the approximately 1.6 million inhabitants of Cuba about 200,000 were Spanish, 500,000 Negroes and mulattos, 800,000 white Cubans and Creoles, and an undetermined number of Chinese, Jamaicans, Haitians, and others. The Spaniards, with some notable exceptions in particular among the Catholic clergy, remained faithful to Spain and opposed to the Cuban revolution. The Negroes, except for particular cases, were enthusiastically united in support of the rebels under a promise that slavery would be abolished, and because they had an intuitive sense that the rebellion would win... They hoped that under the new regime conditions like those in the nearby republic of Haiti could be created, and dreamed of a free Cuba...]