In September 1817, hearing of the wars in Latin America, he set sail for Buenos Aires to join San Martín's Army of the Andes. He took part in San Martín's liberation of Chile, participating in the decisive battle of Maipú, and then joined Lord Cochrane as the commander of marines in the Chilean Navy.
In September 1817, he set sail for Buenos Aires to join San Martín's Army of the Andes, after hearing about the wars in Latin America. He participated in San Martín's liberation of Chile, including the decisive battle of Maipú, and then joined Lord Cochrane as commander of marines in the Chilean Navy.