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
Lamas, Peru Lamas, Peru Lamas is the capital of the Lamas Province, situated in the San Martín Region of northern Peru. There are 16,871 inhabitants, according to the 2007 census. The 2005 northern Peru earthquake shook Lamas, killing 5 people and injuring 174; hundreds were left homeless. Lamas has been conquered twice. The first time was for those Pocras and the group of those Hanan Chancas who when being defeated supposedly in the battle of Yahuarpampa for the troops of the Inca Pachacútec in 1438 and conquered their territories natives like Ayacucho, they abandoned their territory and they went into the forest.