La Reconquista remains a fringe movement, but its activists dream of reclaiming the American Southwest through demographics, politics, and cultural power. A comprehensive analysis. La Reconquista is a fringe irredentist ideology promoted by some Chicano and Mexican American activists. It calls for the cultural, demographic, or political “reclamation” of the U.S. Southwest, which Mexico lost after the Mexican-American War. Proponents view these lands as “stolen” and often invoke the mythical Aztec homeland of Aztlán, advocating non-violent means such as mass immigration, high birth rates, and cultural dominance to achieve de facto control or even separatism. Emerging from the 1960s Chicano...