Battle of Naseby Confederation through the Cessation Treaty, and Catholic nations in Europe. By publishing this correspondence, entitled "The King's Cabinet Opened", Parliament gained much support in favour of fighting the war to a finish. Within a year, the first civil war ended in a Parliamentarian military victory. Battle of Naseby The Battle of Naseby was a decisive engagement of the English Civil War, fought on 14 June 1645 between the main Royalist army of King Charles I and the Parliamentarian New Model Army, commanded by Sir Thomas Fairfax and Oliver Cromwell. It was fought near the village of Naseby in Northamptonshire. After
Clan Leslie to death but he escaped and rejoined King Charles and continued to fight. Leslie's Scottish Covenanter force was defeated by the Scottish Parliamentarian forces who were at this point in time loyal to the Parliament of England and Oliver Cromwell at the Battle of Dunbar (1650). Leslie successfully commanded the Scottish Argyll Government Royalist forces at the Battle of Carbisdale (1650) where he was victorious against Scottish Royalist forces commanded by James Graham, 1st Marquess of Montrose. Leslie's Royalist Forces were defeated at the Battle of Worcester in 1651. Leslie, who was now commanding Royalist forces, had supported the plan