Between 1842 and 1848, a violent conflict erupted on the banks of the SãoFrancisco River in nordieastern Brazil. Militão Plácido de França Antunesand his faction declared war on the family of Captain Bernardo JoséGuerreiro. Both families were based in the river town of Pilão Arcado, butthe fighting spread to the nearby town of Sento-Sé, and by 1848 violence hadengulfed the entire region from Barra to Juazeiro (see Figures 1 and 2).Bands of armed men loyal to Militão roamed the streets and attacked thehouseholds of people they considered to be on the side of the Guerreiros.Many people were killed, and others fled the region altogether. The violenceended only after Militão's faction killed Guerreiro's last adult son onAugust 1, 1848. Although a family feud in the backlands was not unusual,this fight resonated with coastal lawmakers who, in Brazil's Second Empire,had been looking toward conquering the west and consolidating their own vastterritory. The reports of wrenching violence in the backlands, unchecked bythe rule of law, represented the deepest fears of the coastal elite and madethe need to conquer the Brazilian interior even more urgent.