Chincha Islands War
The War of the Pacific (Spanish: Guerra del Pacífico) (1879–1883) was fought in western South America, between Chile and allies Bolivia and Peru. Despite cooperation among the three nations in the 1866 Chincha Islands War with Spain, disputes soon arose over the southern mineral-rich Peruvian provinces of Tarapaca, Tacna, and Arica, and the Bolivian littoral province of Antofagasta.