Viceroyalty of Peru on July 21, 1821. The independence of Peru was proclaimed on July 28, 1821. Viceroy José de la Serna e Hinojosa, still in command of a sizable military force, retired to Jauja, and later to Cusco. On July 26, 1822, San Martín and Simón Bolívar met in Guayaquil to define a strategy for the liberation of the rest of Peru. The meeting was secret, and exactly what occurred is not known. However, afterwards San Martín returned to Argentina while Bolívar prepared to launch an offensive against the remaining royalist forces in Peru and Upper Peru (Bolivia). In September 1823 Bolívar
Campaign of Sucre in Upper Peru to invade Upper Peru to Potosí. Royalist general Pedro Antonio Olañeta, hearing of the defection half of his forces under Col Medinaceli, and passed to the patriots, Olañeta attack them on April 1, 1825. Olaneta wound in combat fell to the ground. His soldiers surrender. Olaneta died the following day, April 2. That same day Col.Medinaceli referred the part of the battle to Marshal Sucre, who ended the military campaign. Campaign of Sucre in Upper Peru Campaign of Sucre in Upper Peru was a set of military operations conducted by the Liberator United Army of Peru to dislodge the Spanish