<Ul> <Li> First Banda Oriental campaign (1811) </Li> </Ul> <Li> First Banda Oriental campaign (1811) </Li> <P> The undesired outcomes of the Paraguay and Upper Peru campaigns led the Junta to be replaced by an executive Triumvirate in September 1811 . This new government decided to promote a new campaign to the Upper Peru with a reorganized Army of the North and appointed José de San Martín, a veteran of the Napoleonic Wars who had recently arrived from Spain, as lieutenant colonel . San Martín was ordered to create the professional and disciplined cavalry unit known as Regiment of Mounted Grenadiers (Spanish: Granaderos a caballo). </P> <Ul> <Li> Second Upper Peru campaign (1812--1813) </Li> </Ul>

Who freed argentina and chile from the spanish kingdom