Viceroyalty of Peru Guayaquil and El Callao, but on 4 February he captured Valdivia, called at the time "The Key of the South Seas" and the "Gibraltar of the Pacific", due to its huge fortifications. However the viceroyalty managed to defend Chiloé Island until 1826. On September 8, 1820, the "Expedición Libertadora" of Peru, organized mainly by Argentinians and with some Peruvian and Chilean involvement, landed on the beach at Paracas Bay, near the city of Pisco, Peru. The army was under the command of José de San Martín. After fruitless negotiations with the viceroy, San Martín occupied the Peruvian capital of Lima
Maynas Province, Peru Maynas Province, Peru Maynas is a province in the Loreto Region in northeastern Peru. Its capital, Iquitos, is also Loreto's regional capital and the largest city in the Peruvian Amazon Rainforest. The Maynas Province is bordered by Ecuador on the northwest, Colombia on the north, northeast and east, the Mariscal Ramón Castilla and Requena provinces on the south, and the Loreto Province on the southwest. According to the 1993 Census, the Maynas Province has a population of 393,496 inhabitants, 50.6% of which (199,209) are male and 49.4% (194,287) are female. As of 2005, the Instituto Nacional de Estadística e Informática