They always acted together in the most perfect harmony, and their friendship remained unimpaired even when in subsequent days they stood in arms against each other.

At the council Turenne was in favour of making a circuit and taking up their post in the valley of St.Pierre, by which they would intercept the Bavarians' communications and force them by famine to issue out from their strong lines and fight in the open, and urged that to attack a position so strongly fortified would entail terrible loss, even if successful.
Marshal de Gramont, and d'Erlac, governor of Breisach, were of the same opinion.

The Duc d'Enghien, however, was for attacking the enemy in their intrenchments; the idea of starving out an enemy was altogether repugnant to one of his impetuous disposition, and as generalissimo he overruled the opinions of the others.

He himself, led by Turenne, reconnoitred the position of the enemy, and decided that the one army, which was called the army of France, consisting of six thousand foot and four thousand horse, commanded by Marshal de Gramont, should attack the enemy's position in front and on their right flank, and the other, called the army of Weimar, of five thousand foot and as many horse, under Turenne, should move round by a narrow pass and attack the enemy on the left flank.

Merci's army occupied an almost inaccessible hill whose summit was strongly fortified, and it was against this that de Gramont's army was to hurl itself.