Wars of Scottish Independence the Bruce following his killing of The Red Comyn in Dumfries in 1306 to his and the Scottish victory at Bannockburn in 1314; and a final phase of Scottish diplomatic initiatives and military campaigns in Scotland, Ireland and Northern England from 1314 until the Treaty of Edinburgh-Northampton in 1328. The war began in earnest with Edward I's brutal sacking of Berwick in March 1296, followed by the Scottish defeat at the Battle of Dunbar and the abdication of John Balliol in July. The English invasion campaign had subdued most of the country by August and, after removing the Stone of
Battle of Halidon Hill ultimate victor. The Treaty of Northampton in 1328 brought an end to over thirty years of intermittent warfare following the defeat of Edward II by Robert Bruce. Bruce's own death the following year opened up an opportunity for the disinherited, Balliol and the English to invade Scotland once more. In 1332 under the leadership of Edward Balliol, son of King John Balliol, and Henry Beaumont, 4th Earl of Buchan, these men invaded Scotland with the full support of Edward III, defeating the Bruce loyalists at the Battle of Dupplin Moor. Building on this success Balliol was crowned King of Scotland.