Chile–Peru relations Peru had a secret defensive alliance with Bolivia, Peru did not declare war on Chile even after Chile invaded the Bolivian port of Antofagasta. War was not declared formally until Chile declared war on both Peru and Bolivia in 1879. Peru declared war on Chile the following day. The war resulted in a Chilean invasion of Peru and the destruction of various Peruvian buildings, cities, a major raid and a two-year occupation of the capital of Peru, Lima. The ultimate result of the war left a deep scar on the three societies involved, and the relations between Peru and Chile
Jaén, Peru was 2.3 and its estimated 1999 population was 85,021 inhabitants, with a population density of 139.6 hab/km. Two important features of its population, which is only 30.8% rural and 42.6% under 15 years. By the end of 2012 a population of 170,000 inhabitants was estimated, without including the sector of Fila Alta. Jaén, Peru Jaén is a city which is the capital of the Jaén Province in the Cajamarca Region in Peru, located in the high jungle of northern Peru. It is the seat of the Catholic Apostolic Vicariate of St. Francis Xavier, also known as Apostolic Vicariate of Jaén