Argentine War of Independence Chile, allied with the Mapuches. On April 4, Argentine Colonel Juan Gregorio de Las Heras had occupied Concepción, but the Royalists retreated to Talcahuano. In early 1818, Royalist reinforcements from the Viceroyalty of Peru arrived, commanded by general Mariano Osorio, and advanced towards the capital. San Martín then turned to scorched earth tactics and ordered the evacuation of Concepción, which he thought was impossible to defend. On 18 February 1818, the first anniversary of the battle of Chacabuco, Chile declared its independence from the Spanish Crown. On March 18, 1818, Osorio led a surprise attack on the joint Argentine-Chilean army,
Bernardo Quintana Arrioja his memory. Quintana has not only received various honors, he has had one named after him. Presea "Ing. Bernardo Quintana Arrioja" 2010, which has as object the reward and to recognize publicly the pupils which for his student path and personal merits stood out for the following qualities: leadership, patriotism, service, value and academic excellence. Bernardo Quintana, died on 12 August 1984 his remains were moved to the Rotonda de los Hombres Ilustres. In 2005, the government of Vicente Fox issued a decree to allow the inclusion of Bernardo Quinta Arrioja into Rotonda of the Illustrious Persons. The cemetery contains