The Battle of Salta took place on February 20, 1813 on the plains of Castañares, north of the present-day Argentina city of Salta, during the Argentine War of Independence. The Army of the North, under the command of general Manuel Belgrano, defeated for the second time the royalist troops of general Pío de Tristán, after their victory in the previous September at the Battle of Tucumán. The unconditional surrender of the royalist troops ensured Argentine control over most of the northern territories of the former Viceroyalty of the Río de la Plata.