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 the Dunes (1658) immediate prospect of a Royalist expedition to England. Dunkirk surrendered to French forces ten days after the battle on 24 June, and Cardinal Mazarin honoured the terms of the treaty with Oliver Cromwell and handed the port over to the Commonwealth. The campaign of the English contingent in Flanders did not end with the battle of the Dunes and the capture of Dunkirk. Part of the English contingent was left to garrison Dunkirk and Mardyke under the command of Sir William Lockhart, while the rest, under Sir Thomas Morgan, continued to serve with Turenne's army in the field. While the