Chile–Peru relations and Angamos (Oct. 8, 1879) enabled Chile to control the sea approaches to Peru. A Chilean army then invaded Peru. An attempt at mediation by the United States failed in October 1880, and Chilean forces occupied the Peruvian capital of Lima the following January. Chile was also to occupy the provinces of Tacna and Arica for 10 years, after which a plebiscite was to be held to determine their nationality. But the two countries failed for decades to agree on what terms the plebiscite was to be conducted. This diplomatic dispute over Tacna and Arica was known as the Question
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