Oliver Cromwell with Sir Thomas Fairfax in command and Cromwell as Lieutenant-General of cavalry and second-in-command. At the critical Battle of Naseby in June 1645, the New Model Army smashed the King's major army. Cromwell led his wing with great success at Naseby, again routing the Royalist cavalry. At the Battle of Langport on 10 July, Cromwell participated in the defeat of the last sizeable Royalist field army. Naseby and Langport effectively ended the King's hopes of victory, and the subsequent Parliamentarian campaigns involved taking the remaining fortified Royalist positions in the west of England. In October 1645, Cromwell besieged and took
Royalist (Spanish American independence) in Spain in 1823 had other implications for the war in South America. Royalist officers, split between liberals and conservatives, fought an internecine war among themselves. General Pedro Antonio Olañeta, commander in Upper Peru, rebelled against the liberal viceroy of Peru, José de la Serna, in 1823. This conflict provided an opportunity for the republican forces under the command of Bolívar and Antonio José de Sucre to advance, culminating in the Battle of Ayacucho on December 9, 1824. The royal army of Upper Peru surrendered after Olañeta was killed on April 2, 1825. Former royalists, however, played an important part