It was upon the 3rd of June that Louis XIV. had written to Villars telling him that a renewal of the war would now be undertaken. On the 14th, Villars began to throw up earth for the formation of an entrenched camp between the marshy ground of Hulluch and that of Cuinchy. Here he proposed to concentrate the mass of his forces, with La Bassée just before him, the town of Lens behind. He used the waterways and the swamped ground in front and to the right for the formation of his defensive lines. These followed the upper valley of the Deule, the line of its canal, and finally reposed their right upon the river Scarpe. Though the regularly fortified line went no further than the camp near La Bassée, he also threw up a couple of entrenchments in front of Bethune and St Venant in order to cover any march he might have to make towards his left should the enemy attempt to turn him in that direction.

It must further be noted that from the Scarpe eastward went the old “lines of La Trouille” thrown up in a former campaign, and now largely useless, but still covering, after a fashion, the neighbourhood of Mons.

Toward the end of the month of June Villars awaited the advance of the allies. His forces were inferior by 40,000 to those of his enemy. He had but eight men to their twelve. The season of the year, immediately preceding the harvest, made the victualling of his troops exceedingly difficult, nor was it until the day before the final assault was expected that the moneys necessary to their pay, and to the other purposes of the army, reached him; but he had done what he could, and, acting upon a national tradition which is as old as Rome, he had very wisely depended upon fortification.

The same conditions of the season which produced something like famine in the French camp, though they did not press equally severely upon that of the allies, rendered difficult the provisioning of their vast army also.

It was the first intention of Marlborough and Eugene to attack the lines at once, to force them, and to destroy the command of Villars. But these lines had been carefully reconnoitred, notably by Cadogan, who, with a party of English officers, and under a disguise, had made himself acquainted with their strength. It was determined, therefore, at the last moment, partly also from the fears of the Dutch, to whom the possession of every fortress upon the frontier was of paramount importance, to make but a “feint” upon Villars’ lines and to direct the army upon Tournai as its true object. The feint took the form of Eugene’s marching towards the left or western extremity of the line, Marlborough towards the eastern or right extremity near Douai, and this general movement was effected on the night of the 26th and 27th of June. In the midst of its execution, the feint (which for the moment deceived Villars) was arrested.

The 27th was passed without a movement, Villars refusing to leave his entrenchments, and the commanders of the allies giving no hint of their next intention. But during that same day Tilly with the Dutch had appeared before Tournai. On the evening of the day Marlborough himself was before the town. On the 28th Prince Eugene joined both the Dutch and Marlborough before the town, taking up his headquarters at Froyennes, Marlborough being at Willemeau, and the Dutch, under Tilly, already established on the east of Tournai from Antoing to Constantin, just opposite Eugene, where they threw a bridge across the Scheldt. By the evening of the 28th, therefore, Tournai was invested on every side, and the great allied armies of between 110,000 and 120,000 men had abandoned all hope of carrying Villars’ lines, and had sat down to the capture of the frontier fortress.[2]

A comprehension of this siege of Tournai, which so largely determined the fortunes of the campaign of Malplaquet, will be aided by the accompanying sketch map. Here it is apparent that Marlborough with his headquarters at Willemeau, Eugene with his at Froyennes, the Dutch under Tilly in a semicircle from Antoing to Constantin, completed the investment of the fortress, and that the existing bridge at Antoing which the Dutch commanded, the bridge at Constantin which they had constructed, giving access over the river to the north and to the south, made the circle complete.

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