Edward in trying to bring Scotland under his sway pursued a two-fold policy. He endeavoured to prevent as far as possible all union among the most powerful Scottish barons. He arrayed their private and selfish ambition against the love of their country. He sowed dissension in their councils, and richly rewarded their treachery. Those who dared to oppose his well-laid schemes were treated with unmitigated severity. His success in this respect was complete. He had the satisfaction of seeing the country torn to pieces by contending factions. His way was now open for applying more drastic measures. He raised a powerful army and invaded Scotland. The town of Berwick was then an important centre of commerce, and he was determined at all hazards to make himself master of the city. "He despatched a large division, with orders to assault the town, choosing a line of march which concealed them from the citizens; and he commanded his fleet to enter the river at the same moment that the great body of the army, led by himself, were ready to storm. The Scottish army fiercely assaulted the ships, burnt three of them, and compelled the rest to retire; but they in their turn were driven back by the fury of the land attack. Edward himself, mounted on horseback, was the first who leaped the dyke; and the soldiers, animated by the example and presence of their King, carried everything before them. All the horrors of a rich and populous city, sacked by an inflamed soldiery, and a commander thirsting for vengeance, now succeeded. _Seventeen thousand persons_, without distinction of age or sex, were put to the sword; and for two days the city ran with blood like a river. The churches, to which the miserable inhabitants fled for sanctuary, were violated and defiled with blood, spoiled of their sacred ornaments, and turned into stables for the English cavalry."[1]
This ruthless massacre produced a profound sensation all over the country, but more especially on the Borders, and had much to do in creating that bitter feeling of hostility with which the English were ever afterwards regarded. To harass and despoil them was looked upon almost as a sacred duty. This miserable butchery of the inoffensive lieges instantly led to reprisals. Under the Earls of Ross, Menteith, and Athole, the Scottish army crossed the English Border, and ravaged with merciless severity the districts of Redesdale and Tynedale. The monasteries of Lanercost and Hexham were given to the flames, towns and villages destroyed, and the surrounding country laid waste. The Scots returned laden with booty. But the success which had crowned their arms was of doubtful utility. It only served to fan the flame of vengeful ire in the breast of the English King, who now resolved on the complete subjugation of the country. He marched against Dunbar with an army of ten thousand foot, and a thousand heavy armed horse. The Scots opposed his progress with an army much superior in point of numbers, and occupying a position of great strategic importance on the heights above Spot. As the English army had necessarily to deploy in passing along the valley it was supposed that the ranks had somehow fallen into confusion. The Scots precipitately rushed upon the enemy, only to find, to their dismay, that the English army was under the most perfect discipline, and ready for the attack. After a short resistance the Scottish columns were thrown into inextricable confusion, and were routed with great slaughter, leaving ten thousand brave soldiers dead in the field. History has a strange knack of repeating itself. Three hundred and fifty years after, the Scottish covenanters committed a similar blunder at the same place when opposing the progress of Oliver Cromwell, and with an equally disastrous result. The progress of Edward now partook of the nature of a triumphal march. He threw his army upon Edinburgh, and in the course of eight days made himself master of the Castle. He then proceeded to Perth, where he received the submission of Baliol, who seemed anxious to rid himself of an office the duties of which he was constitutionally unfit to discharge. The King continued his march to Aberdeen, and from thence to Elgin, without resistance. The nobles hurried into his presence to tender their submission. With indecent haste they renounced the alliance with Bruce, and took the oath of fealty to the destroyer of their country's liberties. It was a dark and tragic hour in Scottish history.