On 26 May, Marlborough reached Coblenz, where the Moselle meets the Rhine. If he intended an attack along the Moselle his army would now have to turn west, instead it crossed to the right bank of the Rhine, and was reinforced by 5,000 waiting Hanoverians and Prussians. The French realised that there would be no campaign on the Moselle. A second possible objective now occurred to theman Allied incursion into Alsace and an attack on Strasbourg. Marlborough furthered this apprehension by constructing bridges across the Rhine at Philippsburg, a ruse that not only encouraged Villeroi to come to Tallard's aid in the defence of Alsace, but one that ensured the French plan to march on Vienna was delayed while they waited to see what Marlborough's army would do.