The Battle of Glen Trool was a minor engagement in the First War of Scottish Independence, fought in April 1307. Glen Trool is a narrow glen in the Southern Uplands of Galloway, Scotland. Loch Trool is aligned on an east–west axis and is flanked on both sides by steep rising hills, making it ideal for an ambush. The battlefield is currently under research to be inventoried and protected by Historic Scotland under the Scottish Historical Environment Policy of 2009.
Robert Bruce had been crowned King of Scots after being involved in the killing of John "the Red" Comyn, a leading rival, a long time enemy, and one of the most powerful men in Scotland, the previous year 1306. Robert the Bruce's rightful claim to the Scottish throne led to a war between King Robert and King Edward I and his allies the Comyns and the MacDougalls.
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