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 Freire captured Talca. Las Heras routed royalist outposts in Juncalito and Potrerillos. Bernardo O'Higgins, who came from Los Patos pass, defeated the royalists at Las Coimas. This allowed the main columns to gather at Aconcagua valley, meeting at the slopes of Chacabuco. Royalist commander Rafael Maroto converged his armies on that location as well. Maroto had 2,450 men and 5 pieces of artillery, San Martín had 3,600 men and 9 pieces of artillery. The misdirection that concealed the path of the bulk of the Army allowed San Martín this advantage, as other royalist forces were scattered in other regions of