The Battle of Iquique (Spanish: Batalla de Iquique or Combate Naval de Iquique) was a confrontation that occurred on May 21, 1879, during the naval stage of the War of the Pacific, a conflict between Chile and Peru and Bolivia. The battle took place off the then-Peruvian port of Iquique. The Peruvian ironclad Huáscar, commanded by Miguel Grau Seminario, sank the Esmeralda, a Chilean wooden corvette captained by Arturo Prat Chacón, after four hours of combat.