fort and led the rest of the army away two marches westward, encamping opposite the lines between the
July 10/21. Canche and the Scarpe. Villars likewise moved westward parallel to him, and took up a position between Oppy and Montenancourt; but, before he started, he detached a force to attack Arleux. The commander of the fort sent a message to Marlborough that he could not possibly hold it, and the Duke at once despatched Cadogan with a strong force to relieve it. It was noticed, however, that Cadogan made no such haste as the urgency of the occasion would have seemed to require; and indeed, before he had gone half-way, he returned with the intelligence that Arleux had surrendered.
Villars was elated beyond measure; and Marlborough for the first time in his life seemed to be greatly distressed and cast down. Throwing off his usual serenity, he proclaimed in public with much passion that he would be even with Villars yet, and would attack him, come what might of it, where he lay. Then came the news that Villars had razed the entire works of Arleux, over which Marlborough had spent such pains, entirely to the ground. This increased the Duke's ill-temper. He declared that he would avenge this insult to his army, and renewed his menace of a direct attack on the entrenchments. Villars now detached
July 15/26. a force to make a diversion in Brabant; and this step seemed to drive Marlborough distracted. Vowing that he would check the march of this detachment, he sent off ten thousand men under Lord Albemarle to Béthune,
July 17/28. and the whole of his baggage and heavy artillery to Douay. Having thus weakened an army already inferior to that of the French, he repaired the roads that led towards the enemy's entrenchments, and on the 1st of August, with much display of vindictiveness,
