The battle of Marston Moor proved to be a turning point in the Civil War and perhaps the biggest ever fought on English soil. The Royalist cause was dealt a mortal blow and although the conflict continued for another year or more, Royalist fortunes never really recovered. As Margaret Toynbee asserts in her introduction, the chief responsibility for the disaster rests with Prince Rupert who failed to liaise with his fellow general, the Marquess of Newcastle. Equally, Oliver Cromwell should receive much of the credit for Parliament's victory. This book describes the campaign and the battle.