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TheBattle of Tumusla was the last battle between regular forces during theBolivian War of Independence and one of the last encounters of theSpanish American wars of independence. This battle was fought on 1 April 1825, near the village ofTumusla (Potosí), in the current territory ofBolivia. It was a defeat for the Royalist forces under command ofPedro Antonio Olañeta, who was killed.
After the decisive defeat of the main royalist armies in theBattle of Ayacucho inPeru, on 9 December 1824, and the capture of Spanish ViceroyJosé de la Serna e Hinojosa, the only remain royalist army on the continent was that ofPedro Antonio Olañeta inUpper Peru (today's Bolivia).
Hopelessly outnumbered and low on moral, this army was unable to oppose the1825 advance of the patriot army under command ofAntonio José de Sucre. When his second in command, Carlos Medinaceli Lizarazu, defected with half the troops to the patriots, the furious Pedro Antonio Olañeta ordered an attack on his own ex-troops led by Colonel Medinaceli Lizarazu.[1]
On 2 April 1825, the two forces met at the village of Tumusla, south ofPotosi. Olañeta was mortally wounded and died the following day. All remaining royalist soldiers surrendered or defected.[2]
Controversies remain today over the development of this battle. In some versions, there was no real battle and Olañeta was killed by his own men or committed suicide. Other versions claim that the importance of the battle was later diminished by Sucre, because he actually failed to defeat and capture Olañeta.[3]
This battle of the Bolivian war of independence was the last engagement in an open field by regular armies inSouth America. After the battleAntonio José de Sucre, who had reached Potosí, called a congress of Upper Peru and saw the creation ofBolivia as a new independent nation on 6 August 1825.