The regiment, having reposed for a few months in convenient quarters, and obtained a body of fine recruits from Scotland, advanced from Bruges to the plain of Lisle, and was afterwards encamped with the army on the banks of the Upper Dyle. The French had constructed a new line of entrenchments and forts: the allies advanced with the apparent design of attacking the enemy, when Marshal Villars drew a number of troops out of the neighbouring garrisons, and prepared to make a determined resistance. This was what the Duke of Marlborough wished; and no sooner had a considerable detachment of French troops quitted the garrison of _Tournay_, than the allies struck their tents, marched to the left, and invested the town. Both battalions of the ROYAL Regiment were in the besieging army, and took an active part in the several attacks on the works, and in repulsing the sallies of the garrison. On the 29th of July, while preparations were making to attack the town by storm, the governor surrendered. The citadel still held out; but five British regiments, which had not taken part in the siege of the town, were selected for the siege of the citadel, and the ROYAL Regiment joined the covering army. During the period the siege of the citadel of Tournay was in progress, Lieut.-General the Earl of Orkney was detached, with the grenadier companies of the ROYAL and several other regiments, and twenty squadrons of cavalry, towards St. Ghislain, to seize on certain passes, and to facilitate the subsequent operations of the campaign; and the citadel having surrendered on the 3rd of September, the army afterwards proceeded towards Mons, the capital of the province of Hainault, which the allies intended to besiege. While the troops were on the march, Marshal Villars made several movements with the view to prevent the loss of Mons; and on the 10th of September the French army was in position in front of Taisniere and the hamlet of _Malplaquet_, and having thrown up entrenchments and constructed _abatis de bois_ and other defences, until their camp resembled a fortified citadel, they there awaited the attack of the allies.