During the Spanish War of 1719, the regiment was engaged in a successful expedition against various towns on the north-western sea-board of the Peninsula. For several years thereafter it was variously stationed in Ireland, and, in 1727, removed to Gibraltar, where, with other corps, it successfully defended that important fortress against every attempt of the Spaniards to reduce and regain it. The war of the Austrian Succession, which began in 1742, occasioning the assembling of a British and allied army in the Netherlands, our Borderers were sent thither to reinforce the troops which had already won the bloody victory of Dettingen. The regiment shared the glories and sustained the dangers of Fontenoy, which elicited from Marshal Saxe, the conquering general, the following graphic and generous testimony to the worth of the foe he had overthrown:— “I question much whether there are many of our generals who dare undertake to pass a plain with a body of infantry before a numerous cavalry, and flatter himself that he could hold his ground for several hours, with fifteen or twenty battalions in the middle of an army, as did the English at Fontenoy, without any change being made to shake them, or make them throw away their fire. This is what we have all seen, but self-love makes us unwilling to speak of it, because we are well aware of its being beyond our imitation.” Taking advantage of the disasters which had crowded upon the allied arms in the Netherlands, Prince Charles Edward had stirred up a formidable Rebellion in Scotland, chiefly among the Highland clans, in favour of his pretensions, as the representative of the House of Stuart, to the British throne. This untoward event occasioned the recall of many regiments from the Continent, and required those left behind to confine themselves to the defence of strongly-fortified lines. The Twenty-fifth was one of those that returned. With the Twenty-first Royal North British Fusiliers, it formed the rear guard of the Royal army, advancing in pursuit of the rebels into Scotland. Too late to take any part in the battle of Falkirk, the regiment was stationed in Edinburgh, until the Duke of Cumberland arriving, gave the signal for an immediate advance upon the enemy, then prosecuting the siege of Stirling. Interrupted in their enterprise by the near approach of the Royal army, the rebels retreated precipitately, until, hemmed in, they made a last and fatal stand on Culloden Moor, where they were utterly routed with great slaughter. The most distinguished service performed by a detachment of 300 men of the Twenty-fifth is thus graphically described in the biography of General Melville:—