Complex sentence: As a battalion commander, fought in the battle of Huaqui (1811), a significant victory for the royalists against the Argentine independentists, and was defeated in Tucumán and Salta a few years later.
Split into simpler sentences: As a battalion commander, fought in the battle of Huaqui (1811), a significant victory for the royalists against the Argentine independentists. He was defeated in Tucumán and Salta a few years later.