 He was frustrated in manoeuvering to the west of the lines in the month immediately following the breakthrough.A final effort in early August, using waggons loaded with supplies to remove his dependency on his lines of communication, while successful in forcing Villeroi's army to make a stand close to Waterloo, ultimately failed to bring about a battle due to the veto exercised by the Dutch Field Deputies, notably Slangenburg.The Duke was forced to content himself with the capture of the fortress of Leau and the levelling of the Lines of Brabant between Leau and the Meuse.