The Battle of Bergen was fought on 19 September 1799 and resulted in a Franco-Dutch victory under Generals Guillaume Brune and Herman Willem Daendels against the Russians and British under the Duke of York who had landed in North Holland.

Prince William The British and Russian commanders noticed that the Republicans had left their right uncovered, and a very strong position unoccupied.

The enemy's left was advantageously posted on the high sand hills which extend from the sea, in front of Petten, to the town of Bergen.

The ground over which the centre columns had to move was intersected every three or four hundred yards by broad, deep, wet ditches and canals.

Contrary to all reasonable expectations, the force under Sir Ralph Abercromby took no direct part in this action; consequently the allied troops engaged amounted to no more than between 15,000 and 18,000 men.

The corps under Sir Ralph Abercromby began their march on the evening of 18 September, but his advance was delayed by the bad state of the roads, and he arrived at Hoorn many hours later than was expected.

The objectives that would have been gained by this column would have had a material effect on the result of the whole expedition, and could only be attempted while the Duke of York possessed the superior force.

The action was renewed by these troops, who in their turn repulsed the enemy; but a lack of ammunition and the exhausted state of the corps engaged in that part of the field obliged them to retire on Petten and the Zijpe Canal.

The column under Lieutenant-General Dundas attacked the village of Warmenhuizen at dawn, where the enemy, with a large force of artillery, was strongly positioned.

Three battalions of Russians, under Major-General Sedmoratsky, moving from Krabbendam, gallantly stormed the left of the village, with the 1st Regiment of Guards entering it on the right at the same time.

The left-centre column, though opposed by the bulk of the Batavian army, under General Daendels, had overcome all opposition and taken possession of Oudkarspel, thus securing the direct line of advance on Alkmaar.

Sir Ralph Abercromby had equally well accomplished his task by capturing the town of Hoorn, on the coast of the Zuiderzee, and placing himself in a favourable position for completing the turning movement.