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
Battle of Edgehill to Northampton, where he mustered almost 20,000 men. Learning of the King's move westwards, Essex then marched north-westwards towards Worcester. On 23 September, in the first clash between the main Royalist and Parliamentarian armies, Royalist cavalry under Prince Rupert of the Rhine routed the cavalry of Essex's vanguard at the Battle of Powick Bridge. Nevertheless, lacking infantry, the Royalists abandoned Worcester. By early October, the King's army was almost complete at Shrewsbury. He held a council of war, at which two courses of action were considered. The first was to attack Essex's army at Worcester, which had the drawback that