Still the Commons persevered in opposition to the Army; and at last Cromwell, without the orders and in spite of the unwillingness of Fairfax, gave the Presbyterian majority a strong hint to convert itself into a minority. His arguments consisted of one regiment of horse, stationed in Hyde Park, and a small party of foot at the door of the House; and they were sufficient and conclusive. The House thus purged, Cromwell turned to the task which was to occupy the remainder of his life and drive him worn-out to his grave, a final settlement of the original quarrel. Wisely enough he thought that this could be effected only by agreement with the King; and it was to negotiation with Charles Stuart for this object that he now devoted the whole of his energy. But negotiation with a man who was constitutionally incapable of straightforward and honourable dealing could have but one end. The lower ranks of the Army, not more far-seeing but less sanguine than their leader, again interposed. A section of extremists, known at that time by the name of Levellers, began, as is usual at such times, to raise its head, and condemning all further traffic with the King boldly put forward a revolutionary scheme of its own. Herein, however, the Levellers mistook their man. However Cromwell might be distracted by the difficult questions of a settlement, he was perfectly clear on one point, that the discipline of the Army must be maintained. Symptoms all too significant appeared that that discipline was impaired, and he lost no time in restoring it. One regiment refusing to obey his orders, Cromwell promptly drew his sword and rode single-handed straight into the middle of the malcontents. His resolution speedily convinced the men that he would not be trifled with; the mutineers yielded, and a single execution sufficed to re-establish order. [Sidenote: 1648, January.] Then as usual the portentous folly of the King united all parties not only in the Army but in England against himself. He might have made honourable terms with Cromwell; he preferred to throw himself into the arms of the Scots. Both Houses of Parliament thereupon broke with their North British allies, and the dispute assumed the new phase of a quarrel between English and Scots. English refugees inflamed national feeling at Edinburgh, and on the 11th of April the Scottish Parliament pronounced the treaty between the two nations to be broken. By the first week in May the army which was to invade England began slowly to assemble, and on the 8th of July it crossed the border, ten thousand five hundred strong, and occupied Carlisle. [Sidenote: July.]