A second corps, 25,000 strong, composed of Prussian troops and Dutch, under the Prince of Saarbruck, were to undertake the siege of Kaiserwerth, a small but very important fortress on the right bank of the Rhine, two leagues below Dusseldorf.

The main army, 35,000 strong, under the Earl of Athlone, was destined to cover the frontier of Holland, from the Rhine to the Vecun, and also to cover the siege of Kaiserwerth; while a fourth body, of 10,000 men, under General Cohorn, were collected near the mouth of the Scheldt, and threatened the district of Bruges.
Upon the other side the French had been equally active.

On the Lower Rhine a force was stationed to keep that of Cohorn in check.
Marshal Tallard, with 15,000 men, came down from the Upper Rhine to interrupt the siege of Kaiserwerth, while the main army, 45,000 strong, under the Duke of Burgundy and Marshal Boufflers, was posted in the Bishopric of Liege, resting on the tremendous chain of fortresses of Flanders, all of which were in French possession, and strongly garrisoned by French and Spanish soldiers.
At the time, however, when the vessel containing Rupert Holliday and Hugh Parsons sailed up the Scheldt, early in the month of May, these arrangements were not completed, but both armies were waiting for the conflict.
The lads had little time for the examination of the Hague, now the dullest and most quiet of European capitals, but then a bustling city, full of life and energy; for, with the troops who had arrived with them, they received orders to march at once to join the camp formed at Breda.

Accustomed to a quiet English country life, the activity and bustle of camp life were at once astonishing and delightful.

The journey from the Hague had been a pleasant one.
Rupert rode one of the two horses with which the Earl of Marlborough had presented him, Hugh the other; and as a portion of the soldiers with them were infantry, the marches were short and easy; while the stoppages at quaint Dutch villages, the solemn ways of whose inhabitants, their huge breeches, and disgust at the disturbance of their usual habits when the troops were quartered upon them, were a source of great amusement to them.
Upon reaching the camp they soon found their way to their regiment.
Here Rupert presented to Colonel Forbes the letter of recommendation with which the Earl of Marlborough had provided him, and was at once introduced by him to his brother officers, most of them young men, but all some years older than himself.