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
Battle of Langport that Rupert had surrendered prematurely, and the two became increasingly estranged. These Parliamentarian successes isolated the remaining Royalists in the West Country from Charles's forces in Wales, Oxford and the Midlands. The Royalists were no longer able to raise effective field forces and first civil war ended less than a year later, after the Parliamentarians captured most of the isolated Royalist garrisons. Battle of Langport The Battle of Langport was a Parliamentarian victory late in the First English Civil War which destroyed the last Royalist field army and gave Parliament control of the West of England, which had hitherto been