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
Oliver Cromwell in July 1644, Cromwell had risen to the rank of Lieutenant General of horse in Manchester's army. The success of his cavalry in breaking the ranks of the Royalist cavalry and then attacking their infantry from the rear at Marston Moor was a major factor in the Parliamentarian victory. Cromwell fought at the head of his troops in the battle and was slightly wounded in the neck, stepping away briefly to receive treatment during the battle but returning to help force the victory. After Cromwell's nephew was killed at Marston Moor he wrote a famous letter to his brother-in-law. Marston