From Ath Cumberland fell back to Lessines and drew out such British corps as were in garrison in Flanders to replace those which had suffered most heavily in the action. Meanwhile Tournay, very shortly after the battle, fell by treachery into the hands of the French; and Saxe's field-army being thus raised to a force nearly double that of the Allies, Cumberland was reduced to utter helplessness. The mischief of Fontenoy lay not in the repulse and the loss of men, for the British did not consider themselves to have been beaten, but in the destruction of all confidence in the Dutch troops. The troubles which had harassed Wade to despair now reappeared. Cumberland, despite his inferiority in strength, was expected somehow to defend Flanders, Brabant, and above all Brussels, and yet simultaneously to keep an active army in the field. Worse than this, he attempted to fulfil the expectation. Against his better judgment he weakened his force still further by detaching a force for the garrison of Mons,[192] and then, instead of taking up a strong position on the Scheldt to cover Ghent at all hazards, he yielded to the pressure of the Austrians and crossed the Dender to cover Brussels.[193] Halting too long between two opinions he at last sent off a detachment for the defence of Ghent, half of which was cut off and turned back with heavy loss, while the other half, after enduring much rough usage on the march, entered Ghent only to see the town surprised by the French on the following day. Four British regiments took part in this unlucky enterprise and suffered heavy loss, while the Royal Scots and the Twenty-third, which had been despatched to Ghent after Fontenoy, of course became prisoners.[194] Moreover, a vast quantity of British military stores were captured in Ghent, although Cumberland had a week before ordered that they should be removed.[195] After this blow Cumberland retired to Vilvorde, a little to the north of Brussels, still hoping to cover both that city and Antwerp, and so to preserve his communications both with Germany and with the sea. Here again he sacrificed his better judgment to the clamour of the Austrians, for he would much have preferred to secure Antwerp only. His position was in fact most critical, and he was keenly alive to it.[196] Just when his anxiety was greatest there came a letter from the Secretary of State, announcing that invasion of England was imminent, and hoping that troops could be spared from Flanders without prejudice to his operations. "What!" answered Ligonier indignantly, "Are you aware that the enemy has seventy thousand men against our thirty thousand, and that they can place a superior force on the canal before us and send another army round between us and Antwerp to cut off our supplies and force us to fight at a disadvantage? This is our position, and this is the result of providing His Royal Highness with insufficient troops; and yet you speak of our having a corps to spare to defend England!"[197]