The great point was to induce Contades to move from his impregnable position. He knew that both Contades and Broglio were as anxious as he was to bring about a battle, did they but see an advantageous opportunity; and he took a bold step to tempt them.

On the 30th of July he sent the Hereditary Prince, with a force of ten thousand men, to make a circuit and fall upon Gohfeld, ten miles up the Weser; and so cut the line by which Contades brought up the food for his army from Cassel, seventy miles to the south. Such a movement would compel the French either to fight or to fall back. It was a bold move and, had it not succeeded, would have been deemed a rash one; for it left him with but thirty-six thousand men to face the greatly superior force of the French.

The bait proved too tempting for the French generals. It seemed to them that the duke had committed a fatal mistake. His left, leaning on the Weser was, by the march of the force to Gohfeld, left unsupported at a distance of three miles from the centre; and it seemed to them that they could now hurl themselves into the gap, destroy the duke's left, and then crush his centre and right, and cut off whatever remnant might escape from Hanover.

On Tuesday evening, July 1st, the French got into motion as soon as it was dark. During the night Contades crossed, by nineteen bridges that he had thrown across the Bastau; while at the same time Broglio crossed the Weser, by the bridge of the town, and took up his position facing the Prussian left wing, which rested on the village of Todtenhausen, intending to attack him early in the morning, and to finish before the duke could bring the centre to his assistance.

Feeling sure that the French would fall into the trap, the duke ordered his cavalry to mount at one o'clock in the morning, and moved in with his troops from the villages around which they were encamped; closing in towards Minden, whereby the centre gradually came into touch with the left, the whole forming a segment of a circle, of which Minden was the centre.

The French also formed a segment of a similar circle, nearer to Minden. Contades was a long time getting his troops into position, for great confusion was caused by their having crossed by so many bridges, and it took hours to range them in order of battle.

Broglio was in position, facing the duke's left, at five o'clock in the morning. He was strong in artillery and infantry; but as the ground on both flanks was unfavourable for the action of cavalry, these were all posted in the centre. The cavalry, indeed, was the strongest portion of the force. They numbered ten thousand, and were the flower of the French army.

The duke placed six regiments of British infantry in his centre. They were the 12th, 20th, 23rd, 25th, 37th and 51st. Some regiments of Hanoverians were in line behind them. The British cavalry were on the duke's right. The morning was misty, and it was not until eight o'clock that both sides were ready, and indeed even then Contades' infantry was not finally settled in its position.

The battle began with an attack by some Hessian regiments on the village of Hahlen, and by a very heavy fire of artillery on both sides. The orders to the English regiments had been, "March to attack the enemy on sound of drum," meaning that they were to move when the drums gave the signal for the advance. The English, however, understood the order to be, "You are to advance to the sound of your drums." They waited for a time, while the attack on Hahlen continued. It was repulsed three times before it succeeded, but before this happened the English regiments lost patience, and said, "We ought to be moving." The drums therefore struck up and, to the astonishment of the Hanoverians, these English battalions strode away towards the enemy. However, the regiments of the second line followed.

As the British stepped forward, a tremendous crossfire of artillery opened upon them, thirty guns on one side and as many on the other; but in spite of this the six regiments pressed on unfalteringly, with their drums beating lustily behind them. Then there was a movement in their front, and a mighty mass of French cavalry poured down upon them. The English halted, closed up the gaps made by the artillery, held their fire until the leading squadrons of the French were within forty paces, and then opened a tremendous file fire. Before it man and horse went down. At so short a distance every bullet found its billet and, for the first time in history, a line of infantry repulsed the attack of a vastly superior body of cavalry.