The Battle of Arica, also known as Assault and Capture of Cape Arica, was a battle in the War of the Pacific. It was fought on 7 June 1880, between the forces of Chile and Peru.
After the Battle of Tacna and the following Bolivian withdrawal from the war, Peru had to stand alone for the rest of the conflict. The need for a port near to the location of the army, in order to supply and reinforce the troops and evacuate wounded, made the Chilean command put its attention on the remaining Peruvian stronghold in the Tacna Department. The Chilean army, led by Colonel Pedro Lagos, launched a giant assault to Arica, where the 1600 men of the defense fought more than 8000 Chileans, from sea and land, who finally captured the Morro de Arica after 55 minutes of combat.
Wikipedia https://en.wikipedia.org/wiki/Battle_of_Arica
Address Chile
Coordinates -18°28'51.685" N -70°19'26.752" E