He redoubled his diligence, passed the Neckar on the third of June, and halted at Ladenburgh; from thence he wrote a letter to the states-general, giving them to understand that he had the queen's orders to march to the relief of the empire, and expressing his hope that they would approve the design, and allow their troops to share the honour of the expedition By the return of a courier he received their approbation, and full power to command their forces He then proceeded to Mildenheim, where he was visited by prince Eugene; and these two great men, whose talents were congenial, immediately contracted an intimacy of friendship, Next day prince Louis of Baden arrived in the camp at Great Hippach, He told the duke, his grace was come to save the empire, and to give him an opportunity of vindicating his honour, which he knew was at the last stake in the opinion of some people.

The duke replied he was come to learn of him how to serve the empire: that they must be ignorant indeed who did not know that the prince of Baden, when his health permitted him, had preserved the empire and extended its conquests.
Those three celebrated generals agreed that the two armies should join, that the command should be alternately vested in the duke and prince Louis from day to day, and that prince Eugene should command a separate army on the Rhine, Prince Louis returned to his army on the Danube, prince Eugene set out for Philipsburgh; the duke of Marlborough being joined by the imperial army under prince Louis of Baden at Wastertellen, prosecuted his march by Elchingen, Gingen, and Landthaussen.

On the first day of July he was in sight of the enemy's entrenchments at Dillingen, and encamped with his right at Amerdighem, and his left at Onderin-gen.

Understanding that the elector of Bavaria had detached the best part of his infantry to reinforce the count D'Arco, who was posted behind strong lines at Schellenberg near Donawert, he resolved to attack their entrenchments without delay On the second day of July he advanced towards the enemy, and passed the river Wermitz; about five o'clock in the afternoon the attack was begun by the English and Dutch infantry, supported by the horse and dragoons.

They were very severely handled, and even obliged to give way, when prince Louis of Baden marching up at the head of the imperialists to another part of the line, made a diversion in their favour.