In the clothing warrant, dated the 1st of July, 1751, the facing of the regiment is directed to be yellow. The first, or King's colour, to be the great union; the second, or regimental colour, to be of yellow silk, with the union in the upper canton; in the centre the number of the regiment in gold Roman characters, within a wreath of roses and thistles on the same stalk. The uniform at this period was cocked hats bound with white lace; scarlet coats faced and turned up with yellow, and ornamented with white lace; scarlet waistcoat and breeches; white gaiters; white cravats; and buff belts. [Sidenote: 1755] The regiment remained in Ireland until the undetermined boundary of the British and French settlements in North America occasioned a rupture between the two kingdoms. The aggressions of the French led to the sending of a body of British troops to North America in 1755; at which period the establishment of the FIFTEENTH was augmented, and the regiment embarked for England. [Sidenote: 1756] Colonel Jordan was removed to the ninth dragoons, in April, 1756, and King George II. conferred the colonelcy of the FIFTEENTH foot on Colonel Jeffery (afterwards Lord) Amherst, from captain and lieut.-colonel in the first foot guards. In July of this year the regiment pitched its tents near Blandford, where an encampment was formed of six regiments of foot and two of dragoons under Lieut.-General Sir Charles Howard. [Sidenote: 1757] Numerous encampments were formed also in the following year, and the troops held in readiness to repel a threatened invasion of the French. The FIFTEENTH foot, and four other corps, pitched their tents on Barham-downs, under Charles Duke of Marlborough. From Barham-downs the regiment proceeded to the Isle of Wight, in order to form part of an expedition against the French naval station of _Rochfort_, on the river Charente. The FIFTEENTH, commanded by Lieut.-Colonel Honorable Sir James Murray, was formed in brigade with the fifth, twenty-fourth, thirtieth, and fifty-first regiments; the land forces were under Lieut.-General Sir John Mordaunt, and the navy under Admiral Sir Edward Hawke. The fleet sailed in the early part of September; on the 23rd of that month the _Isle of Aix_ was captured, and the forts were afterwards destroyed. Owing to unfavourable weather, a landing could not be effected near Rochfort before the enemy was alarmed and prepared for a vigorous resistance. The troops were repeatedly in readiness to land, and on one occasion the first division was in the boats; but the weather, and other causes, prevented a debarkation taking place. The expedition afterwards returned to England. [Sidenote: 1758]