Military history of Scotland for Robert I's success was his ability to call on naval forces from the Islands. As a result of the expulsion of the Flemings from England in 1303, he gained the support of a major naval power in the North Sea. The development of naval power allowed Robert to successfully defeat English attempts to capture him in the Highlands and Islands and to blockade major English controlled fortresses at Perth and Stirling, the last forcing Edward II to attempt the relief that resulted at English defeat at Bannockburn in 1314. Scottish naval forces allowed invasions of the Isle of Man
Robert the Bruce by the English Knight Sir Henry de Bohun. Riding with the heavy cavalry, de Bohun caught sight of Bruce, who was armed only with his battle-axe. De Bohun lowered his lance and charged, and Bruce stood his ground. At the last moment, Bruce swiftly dodged the lance, raised in his saddle, and with one mighty swing of his axe, struck Bohun so hard that he split his iron helmet, and his head in two, a blow so powerful that it shattered the very weapon into pieces. Afterwards the King merely expressed regret that he had broken the shaft of his