WThe Battle of Abtao was a naval battle fought on February 7, 1866, during the Chincha Islands War, between a Spanish squadron and a combined Peruvian-Chilean fleet, at the island of Abtao in the Gulf of Ancud near Chiloé Archipelago in south-central Chile. It was limited to a long-range exchange of fire between the two squadrons, as the allied ships, anchored behind the island, were protected by shallow waters inaccessible to the Spanish ships, whose gunnery, nevertheless, proved more accurate and inflicted damage to the Chilean and Peruvian ships.
WThe Action of 17 November 1865 was a minor naval engagement that took place off Tomé, during the Chincha Islands War. Chilean tugboat Independencia captured a Spanish gunboat who belonged to the frigate Resolución.
WThe Action of 22 August 1866 occurred during the Chincha Islands War near Funchal, on the island of Madeira, and was the final action of the war battle between Spanish and Chilean forces.
WThe Battle of Callao occurred on May 2, 1866 between a Spanish fleet under the command of Admiral Casto Méndez Núñez and the fortified battery emplacements of the Peruvian port city of Callao during the Chincha Islands War. The Spanish fleet bombarded the port of Callao, and eventually withdrew without any notable damage to the city structures, according to the Peruvian and American sources; or after having silenced almost all the guns of the coastal defenses, according to the Spanish accounts and French observers. This proved to be the final battle of the war between Spanish and Peruvian forces.
WOn 6 March 1866, during the Chincha Islands War, the Spanish steam frigate Blanca captured the Chilean sidewheel steamer Paquete de Maule in the Gulf of Arauco.
WThe Naval Battle of Papudo was a naval engagement fought between Spanish and Chilean forces on November 26, 1865, during the Chincha Islands War. It was fought 55 miles north of Valparaiso, Chile, near the coastal town of Papudo.
WThe Bombardment of Valparaíso on 31 March 1866 took place during the Chincha Islands War, when a Spanish fleet shelled, burned and destroyed the undefended port of Valparaíso.