What Charles II did not know was that, in order to maintain the abundant stamina and morale of the Guard Corps, Joseph had already implemented a rotation system. In the two important towns south of Brussels, two battalions of troops were stationed in each, with 1,000 men left on alert in the central area, plus reconnaissance Hussars scattered around. In total, only half of the forces were ready for combat, while the other half were conducting routine training north of Namur.
They switched places every month and a half.
In addition, he conscripted 5,000 locals in the Walloon Region to form the "Walloon Guard" to assist with the battle in Brussels. In the French-speaking region of Southern Netherlands, there were plenty of people willing to serve the Crown Prince of France for a bit of military pay.