The van of the English army was now thoroughly demoralized, and their comrades in the rear could not, in these narrow limits, press forward to render any assistance. King Robert's camp-followers, at this juncture, rushed down a hill behind the Scottish army, and they appeared to the English as a fresh force come to assist the enemy. The result was the loss of all sense of discipline: King Edward's magnificent host fled in complete rout and with great slaughter, and the cause of Scottish freedom was won. The victory of Bannockburn did not end the war, for the English refused to acknowledge the hard-won independence of Scotland, and fighting continued till the year 1327. The Scots not only invaded England, but adopted the policy of fighting England in Ireland, and English reprisals in Scotland were uniformly unsuccessful. Bruce invaded England in 1315; in the same year, his brother Edward landed with a Scottish army at Carrickfergus, in the hope of obtaining a throne for himself. He was crowned King of Ireland in May, 1316, and during that and the following year, King Robert was personally in Ireland, giving assistance to his brother. But, in 1318, Edward Bruce was defeated and slain near Dundalk, and, with his death, this phase of the Bruce's English policy disappears. A few months before the death of Edward Bruce, King Robert had captured the border town of Berwick-on-Tweed, which had been held by the English since 1298. In 1319, Edward II sent an English army to besiege Berwick, and the Scots replied by an invasion of England in the course of which Douglas and Randolph defeated the English at Mitton-on-Swale in Yorkshire. The English were led by the Archbishop of York, and so many clerks were killed that the battle acquired the name of the Chapter of Mitton. The war lingered on for three years more. The year 1322 saw an invasion of England by King Robert and a counter-invasion of Scotland by Edward II, who destroyed the Abbey of Dryburgh on his return march. This expedition was, as usual, fruitless, for the Scots adopted their usual tactics of leaving the country waste and desolate, and the English army could obtain no food. In October of the same year King Robert made a further inroad into Yorkshire, and won a small victory at Biland Abbey. At last, in March, 1323, a truce was made for thirteen years, but as Edward II persisted in declining to acknowledge the independence of Scotland, it was obvious that peace could not be long maintained.