Background
Dispatched by Peruvian president Mariano Ignacio Prado, who had rallied the South American republics in defense against Spanish aggression, the allies had sailed in convoy from the town of Ancud to the island of Abtao to await the arrival of two new corvettes acquired by Peru. The Spanish commander Casto Méndez Núñez, informed of the location of the Peruvian-Chilean fleet, ordered the steam frigates (Captain Claudio Alvargonzález) and (Commander Juan Topete) to lift the blockade on Valparaiso and sail towards Abtao to intercept the enemy fleet. On January 16, 1866, the combined Peruvian-Chilean fleet, composed of the Peruvian frigates ''Apurímac'' and ''Amazonas'' and the recently captured and refurbished Chilean schooner ''Covadonga'', had convoyed from the port of Ancud towards the shipyards on the little island of Abtao, at the head of the southernOrder of battle
Spanish fleet
Allied fleet
Battle
The frigates ''Villa de Madrid'' and ''Reina Blanca'' appeared off the inlet of Abtao on February 7, 1866, but did not enter, for fear of the shallow waters. Manuel Villar, Commander of the Peruvian First Naval Division and commander of the combined fleet, ordered the attack when the Spaniards began to proceed through the widest channel. The allied ships (which included ''Apurímac'', ''América'', ''Unión'', and ''Covadonga'') formed a line of battle to cover both inlets of the channel with their artillery. The allied fleet opened fire at 15:30 hours from , followed by fire of the Spanish fleet, which showed great accuracy despite the two frigates being forced to shoot alternately due to the position of the Allied fleet. The ''Apurímac'' was hit three times at the water line, forcing her to move north. The ''América'' was hit six times. The ''Unión'', where two crewman were killed, was hit three times, and the ''Covadonga'', one. The Spanish ships received fourteen hits, mainly by the ''América'' and the ''Unión'', which caused little damage and left 6 crewmen wounded. After two hours of battle and more of 1,500 shots from each side, the Spanish frigates, seeing that the allied fleet was well protected in her position around the shoals, decided to leave the reef and waited to go out to sea. But this did not happen, and at 9:00 am of the following day, the Spanish squadron returned to its base. In his report to the Admiral Méndez Nuñez, the Spanish Captain Claudio Alvar González wrote:''The most effective and precise shots came from the Peruvian corvettes ''Unión'' and ''América''.''
Aftermath
After the results of the Battle of Abtao, Rear Admiral Casto Méndez Núñez traveled south with the armoured frigate , the screw frigate '' Resolución'', and ''Reina Blanca'' to try to force a new confrontation with the allies. But his efforts were unsuccessful. The allied fleet had moved to Huito, a position much more difficult to access than Abtao. On March 25, the Peruvian corvettes ''Unión'' and ''América'' were sent to the Strait of Magellan to intercept the Spanish frigate ''Almansa'', which according to intelligence reports had been dispatched from Spain to reinforce the Pacific fleet. The Peruvian ships remained in the area for over a month, but were not able to locate it. The ''Almansa'' didn't reach the Pacific coast until the end of April. The Chilean government also sent the steamer ''Maipú'' to the strait to intercept the Spanish steamers ''Odessa'' and ''Vascongada''. The rest of the allied fleet remained on the defensive in southern Chile, awaiting the arrival of the ironclads ''Huáscar'' and ''Independencia'', which would be the factor to upset the balance of power. Both ships had departed from Brest on 26 February, in what was a long and difficult journey. They were accompanied by the British Steamer ''Thames'', which transported coal and other provisions. On March 30, 1866, off the Brazilian coast, the Peruvian ironclads caused new problems for the Spaniards by intercepting the bergantines ''Dorotea'' and ''Paco''. The ''Dorotea'' was destroyed, while the ''Paco'' was able to avoid capture by moving quickly. On August 22, 1866, the Spanish frigate captured the Chilean schooner ''Pampero'' when it set sail from the jetty of Funchal to Chile.Notable sailors in the battle
Sub-lieutenant Patricio Montojo y Pasarón, who later became an admiral and commander-in-chief of the Spanish Navy in theReferences
Bibliography
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