Oberglau to Blenheim for preventing any serious attack on this part of his line.
The army of the Allies was formed into two great divisions: the largest being commanded by the Duke in person, and being destined to act against Tallard, while Prince Eugene led the other division, which consisted chiefly of cavalry, and was intended to oppose the enemy under Marsin and the Elector. As they approached the enemy, Marlborough's troops formed the left and the centre, while Eugene’s formed the right of the entire army. Early in the morning of the 13th of August, the Allies left their own camp and marched towards the enemy. A thick haze covered the ground, and it was not until the allied right and centre had advanced nearly within cannon shot of the enemy that Tallard was aware of their approach. He made his preparations with what haste he could, and about eight o'clock a heavy fire of artillery was opened from the French right on the advancing left wing of the British. Marlborough ordered up some of his batteries to reply to it, and while the columns that were to form the allied left and centre deployed, and took up their proper stations in the line, a warm cannonade was kept up by the guns on both sides.
The ground which Eugene's columns had to tra-
