Spain had relinquished its claim on _Gibraltar_ with reluctance; and that country having resolved to engage in war with Great Britain, a large army, under the command of the Count de las Torres, was assembled in Andalusia towards the end of 1726, in order to commence hostilities with the siege of this important fortress, for which purpose the Spaniards had made very extensive preparations. The British Government resolved to send certain regiments to reinforce the garrison of Gibraltar, and six men-of-war were also fitted out at Portsmouth with all possible expedition. Admiral Sir Charles Wager was appointed to command the fleet, on board of which three regiments of infantry, Anstruther’s, Disney’s, and Newton’s (Twenty-sixth, Twenty-ninth, and THIRTY-NINTH regiments), were embarked. On the 24th of December 1726, Sir Charles Wager arrived at Portsmouth, and shortly afterwards sailed for Gibraltar, but was detained for some time at Spithead by the southerly winds. Two other regiments of infantry, Middleton’s and Hayes’s (Twenty-fifth and Thirty-fourth), were ordered to embark at Cork, for the purpose of joining Sir Charles Wager, and of reinforcing the garrison of Gibraltar. [Sidenote: 1727.] Admiral Sir Charles Wager arrived in the Bay of Gibraltar on the 2nd of February 1727, after a voyage of fourteen days from Portsmouth. In the previous month the Spanish troops, under General Count de las Torres, had encamped before the fortress, and the bringing up of cannon and mortars occupied several weeks. In February they commenced constructing batteries before any declaration of war had been made, and persisted in the work, notwithstanding the remonstrances of the Lieut.-Governor, Colonel Jasper Clayton. The garrison opened its fire upon the besiegers towards the end of February, and the reverberation of the thunder of the cannon and mortars among the mountains of Andalusia, proclaimed the strenuous efforts of the enemy, and the gallant defence made by the garrison. The tremendous fire of the Spaniards produced little effect beyond the bursting of many of their own cannon, and rendering others useless. The siege was continued until thousands of the enemy had perished, while very little loss was sustained by the garrison.[10] In the early part of June the fire slackened; and shortly afterwards hostilities ceased, in consequence of preliminary articles for a treaty of peace having been agreed upon. Thus the fortress of _Gibraltar_ was a second time preserved, and continued to form one of the trophies of British prowess. [Sidenote: 1729.] Peace having been concluded between Great Britain, France, and Spain, in November 1729, the regiment was ordered to proceed from Gibraltar to Jamaica, and it embarked for that island in the course of the year following. [Sidenote: 1730.] Colonel John Cope was appointed to the colonelcy of the THIRTY-NINTH regiment on the 10th of November 1730, in succession to Brigadier-General William Newton, deceased.