 Complete the following phrase:  On 23 August 1813, the three divisions of the III Cavalry Corps were split among several formations as Oudinots army advanced through broken terrain. Fournier accompanied the XII Corps on the left flank, Defrance marched with the IV Corps on the right flank, while Lorge was held back with two infantry divisions to guard the rear. On the right flank, the IV Corps skirmished with General Bogislav Friedrich Emanuel von Tauentziens 13,000 Prussians and 32 guns. At 2:00 PM, the IV Corps abruptly pulled back. In the center, the 27,000-strong VII Corps occupied a feature called the Windmill Height and went into camp around 3:00 PM. General Friedrich Wilhelm Freiherr von Bülows 38,000-man Prussian corps soon arrived and a 90-minute artillery bombardment ensued. Bülow finally advanced and drove the VII Corps out of its positions after some stiff fighting. At 8:00 PM, Fournier came upon the battlefield and soon a melee was raging between his division and the Prussian hussars. Seeing that his foot soldiers were helpless in a cavalry combat, Bülow withdrew most of his troops. However, that night Oudinot conceded the 