Spanish American wars of independence important change in strategy after three United Provinces campaigns had been defeated in Upper Peru. San Martín's army became the nucleus of the Army of the Andes, which received crucial political and material support in 1816 when Juan Martín de Pueyrredón became Supreme Director of the United Provinces. In January 1817, San Martín was finally ready to advance against the royalists in Chile. Ignoring an injunction from the congress of the Río de la Plata not to move against Chile, San Martín together with General Bernardo O'Higgins Riquelme, later Supreme Director of Chile, led the Army over the Andes in
Battle of Quechereguas Battle of Quechereguas The battle of Quechereguas occurred on 8 April 1814, during the War of Chilean Independence. The Royalists had taken the key Patriot town of Talca in March, 1814, and an army, under the command of Gabino Gaínza, now threatened to advance on the Patriot capital of Santiago itself. Bernardo O' Higgins, the famous Patriot leader, attempted to intervene to prevent this. Gabino Gaínza had crossed over the Maule river with his forces, advancing northwards. O' Higgins was unable to pursue him during the day, because of the size of the Royalist force. During the night, however, O'