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
Bernardo de Brito Bernardo de Brito Friar Bernardo de Brito (20 August 1569 – 27 February 1617) was a Portuguese monk and historian. He is perhaps best known for having authored the first two volumes of "Monarchia Lusytana", his "magnum opus". Friar Bernardo de Brito was born Baltasar de Brito e Andrade, in the fortified village of Almeida in 1569. His father, Pedro Cardoso de Andrade, was a distinguished army captain who fought in Italy and Flanders who was killed in action during the Siege of Antwerp; his mother was Maria de Brito e Andrade, the sister of Rui de Andrade Freire, "alcaide"