On the morning of the 28th the enemy appeared in force before Oudenarde, showing every sign of making the dreaded movement across the river; and the Duke despatched orders to Moira to join Clerfaye immediately. For two days Pichegru continued his menaces on the Scheldt, and then suddenly on the evening of the 30th he retired, having received orders from Paris to occupy Nieuport, Ostend, and the island of Walcheren in force, with a view to the invasion of England. ◆June 30.◆ Ostend, which, together with Nieuport, Henry Dundas had kept under his own orders, was evacuated in good time, while directions to that purport were still on their way from England. Moira’s instructions extended no further than to the defence of Ostend, but, in the critical circumstances of the case, he proposed to join his force to Clerfaye, and to act with him against the French left. Clerfaye at first welcomed the offer, but, on hearing of the misfortune of Fleurus, declared that he could make no engagement with the British whatever. This was unpleasant for Moira, who had counted on the help of the Austrians in protecting the transport of his camp-equipage on the canal from Bruges to Ghent. The situation was dangerous, for the French were in force at three different places within two hours’ march of the canal, bent upon preventing his junction with Clerfaye. Without a moment’s hesitation Moira sent his baggage northward to Sluys, and by a rapid march made his way to Ghent, just in time to anticipate a movement made by the French to intercept him. Thus a valuable reinforcement was secured to the Allies; and three more perilous days were passed without mishap, thanks rather to the Committee of Safety at Paris than to the Austrian commanders in the field.[254] ◆June 30.◆