Concepción, Chile Santiago on September 18, 1810, citizens of Concepción joined up. Concepción was used as the point of entry by the Spanish Army in the attempt by the Viceroyalty of Peru to re-conquer Chile. Concepción politicians and soldiers became a significant political force in the newly independent country. On January 1, 1818, Ambrose O'Higgins's son, Bernardo O'Higgins, proclaimed and took the oath of the Chilean War of Independence in the main square of Concepción, which since then has been known as "Plaza de la Independencia". On February 20, 1835, the town again was largely destroyed by an earthquake and had to
José de San Martín Nearly 700 expeditionary soldiers of New Granada deserted and joined the patriots. Several populations in the north of Peru supported San Martín, and Arenales defeated the royalists at the Battle of Pasco. More than 300 royalists joined the patriots, including Andrés de Santa Cruz. However, the plans did not fully work as intended. The native populations that joined Arenales could not resist the royalist counter-attacks, and the slaves did not join the army in the expected numbers. The Argentine provinces could not send the supporting army that San Martín had requested earlier, and the Army of the North no longer