The Battle of Angamos (Combate naval de Angamos) was a naval battle fought on October 8th 1879, during the War of the Pacific (1879-1883). Also known as the Saltpeter War, the war began as a dispute between Chile and Bolivia over control of the Atacama Desert a region rich in valuable minerals. Peru became involved when Bolivia declared war on Chile and invoked Peru to fight on their side as part of a secret mutual agreement.
The Battle of Angamos took place off the coast of what was then Bolivia (the are is now part of present-day Chile), between the Chilean navy and the Peruvian navy.
The Chilean Navy, under the command of Captains Galvarino Riveros and Juan Jose Latorre surrounded and captured the ironclad steam-propelled warship Huáscar. The captain of the Huáscar was Admiral Miguel Grau Seminario, who was killed by the Chileans.
The defeat in the battle was seen as key turning point in the war and the Peruvian forces were unable to prevent the subsequent invasions into its territory by Chile.
Admiral Grau is considered a hero in Peru and today many streets, parks and other landmarks are named in honour of him and his warship.