After the surrender of _Lisle_, the FOURTH HORSE marched to East Flanders, and were engaged in military operations until _Ghent_ and _Bruges_ were re-captured, when the regiment went into quarters; and the losses of the preceding campaign were replaced by a remount of ninety-seven men and seventy-one horses.[39] [Sidenote: 1709] After remaining in quarters in Flanders until June, 1709, the FOURTH HORSE advanced up the country and erected their tents on the plain of Lisle, near the banks of the Deule, where a vast and magnificent army, composed of the troops of several nations, extended its encampment in regular order over a large tract of country, and exhibited a fine spectacle of war. From this camp the FOURTH HORSE proceeded to the banks of the Scheldt, and formed part of the covering army during the siege of the boasted impregnable fortress of _Tournay_, which surrendered in the beginning of September. From the banks of the Scheldt the FOURTH HORSE moved with the army in the direction of _Mons_, the capital of the province of Hainault, with the design of wresting this important place from the power of France. But while the allies were on the march, the French army moved from its former post and took up a position near _Malplaquet_, at the same time increasing the natural strength of the post by entrenchments and other works. In this camp were collected the choicest troops of France, commanded by two celebrated Marshals, Villiers and Boufflers, and opposed to them the victorious Marlborough and Eugene headed the heroes of Blenheim and Ramilies, amongst whom were the celebrated British Horse under the chivalrous Lieut.-General Wood.