1713
From Portugal, the regiment proceeded to Gibraltar, which fortress had been captured by an English and Dutch force in 1704, and was ceded to Great Britain in 1713 by the treaty of Utrecht, when the Earl of Portmore was appointed Governor; and the protection of the place was confided to the Fifth, Thirteenth, and Twentieth regiments. Here the regiment remained in garrison for a period of fifteen years; its establishment was 500 men, and it became as celebrated for its excellent conduct in time of peace, as it had been distinguished for its noble bearing and gallantry in war.
1726
The crown of Spain had relinquished its claim on Gibraltar with reluctance, and having, towards the end of 1726, resolved to engage in a war with Great Britain, a Spanish army was assembled in Andalusia under the command of the Count de la Torres, to commence hostilities with the siege of this desirable entrepôt to the Mediterranean. This gave the Fifth another opportunity of signalizing itself, and of adding to its honours already acquired,—the proud distinction of a successful defence of this important conquest.
1727
The preparations of the enemy were made upon a most extensive scale. Their troops were encamped before the place in January, 1727, the bringing up of cannon, mortars, and stores to the camp, occupied several weeks, and the heavy artillery was removed from the works at Cadiz and other fortified towns; at the same time the whole disposable force, including part of the garrison of almost every town in Spain, was assembled to take part in the siege. The works having been commenced in February, before any declaration of war was made, and persisted in against the remonstrance of the Lieutenant-Governor, Colonel Jasper Clayton, a council of war of the commanding officers of regiments was assembled, and a determined opposition was resolved upon. On the 21st of February the garrison opened its fire on the besiegers, and from that day the storm of war raged round the rocks of Gibraltar with dreadful violence, increasing in fury until the roar of a hundred cannon and the fire of small arms became almost incessant in the day-time, and was partially continued throughout the night, with the most fatal effects to the Spaniards, whose loss was particularly great. This contest was continued with a few partial intermissions until many thousands of the besiegers had perished in the attempt; while the tremendous fire of the Spaniards had produced little effect beyond the bursting of many of their own cannon, and the enlarging of the touchholes of others so as to render them useless. In the early part of June the fire slackened, and on the 18th of that month hostilities ceased. Thus the ostentatious vaunts of Spain terminated in defeat and confusion.
1728
The Fifth embarked from Gibraltar on the 12th of April, 1728, and proceeded to Ireland, in which country it remained seven years.
1732
In September 1732, General Thomas Pearce, who had commanded the regiment for twenty-eight years, was removed to the Fifth Horse, now Fourth Dragoon Guards, and was succeeded by Colonel John (afterwards Sir John) Cope from the Thirty-ninth regiment.