Though the invading army entered England by way of Carlisle, Cromwell marched against them not through Lancashire but through Yorkshire. He had to supply his men with shoes and stockings from Northampton and Coventry, and to halt at Doncaster to pick up the artillery which was forwarded him from Hull, as well as to rejoin Lambert, who was in command of the small force which it had been possible to despatch to the North whilst Cromwell was detained at Pembroke, and who had been doing his best to delay the progress of the Scots till Cromwell was ready to strike home. On its march through Lancashire, Hamilton's army, some 21,000 strong, pushed slowly forward in a long straggling column, the van and the rear at too great distance from each other to be able to concentrate in case of an attack. On August 17, when Cromwell had crossed the hills into Ribblesdale and was close at hand upon his left flank, Hamilton, who had pushed on his cavalry to Wigan sixteen miles in advance, sent the bulk of his infantry across the Ribble at Preston, leaving Sir Marmaduke Langdale with 3,600 English Royalists on the north bank, whilst another detachment was some miles in the rear. It did not need much generalship to overwhelm an army under such leadership as this. Cromwell fell upon Langdale, who had posted his small force to the greatest advantage behind hedges, and after a hard tussle, carried the position and captured the greater part of the division. Then lining the steep northern bank of the Ribble with musketeers, he drove Hamilton from the flat southern bank and, later on, across the Darwen which, near this point, flows into the Ribble. What followed was little more than mere pursuit. The Scots, half starved and discouraged, were beaten wherever they attempted to make a stand, and Hamilton at last surrendered at Uttoxeter, eight days after the battle. It was Cromwell's first victory in an independent command, and if the Scottish leader had played into his hands, he had been wanting in no part of an efficient general to profit by his folly. Once more, in the despatch in which he announced his success to the Speaker, he harped upon the old string, the duty of the Parliamentary Government to give protection to the 'people of God'. "Surely, Sir," he wrote, "this is nothing but the hand of God, and wherever anything in this world is exalted or exalts itself, God will put it down; for this is the day wherein He alone will be exalted. It is not fit for me to give advice, nor to say a word what use you should make of this; more than to pray you and all that acknowledge God, that they would take courage to do the work of the Lord in fulfilling the end of your magistracy in seeking the peace and welfare of this land; that all that will live peaceably may have countenance from you, and they that are incapable and will not leave troubling the land may speedily be destroyed out of the land."