It will be seen that Blucher covered Fleurus, his concentration point, by Zieten's corps, in the hope of being able to collect his army round Fleurus in the time that Zieten would secure for him by a yielding fight.
Zieten's outposts on the right bank of the Sambre gained still further time, for they fought stubbornly to retard the French advance on Marchienne and Charleroi.
Thus, thanks to Zieten's fine delaying action, Blucher by nightfall on June 15 had secured most of the ground requisite for his pre-arranged concentration; for one corps was in position, and two others were at hand.
's and Zieten's corps were now at hand.
Zieten's advent permitted the two fresh cavalry brigades of Vivian and Vandeleur on the duke's extreme left to be moved and posted behind the depleted centre.