Both sides now assumed the offensive. The Prussians, on the right, fought their way with varying fortunes through the wood, often in hand-to-hand encounter, and, towards eleven o'clock, succeeded in reaching the spur of the wood of St. Arnould projecting in the direction of Flavigny. Their left wing, on the contrary, was repulsed; even the artillery was in danger; but the 52nd Regiment hurried forward and re-established the fight at the cost of bloody sacrifices. Its 1st Battalion lost every one of its officers, the colours passed from hand to hand as its bearers were successively shot down, and the commander of the 9th Brigade, General von Döring, fell mortally wounded. General von Stülpnagel rode up into the foremost line of fire, inspiriting the men with brave words, while General von Schwerin collected the remnants of troops bereft of their leaders, and, reinforced by a detachment of the Xth Corps from Novéant, carried the height in front of Flavigny, whence the French presently retired.
On the assumption that the French were already prosecuting the retreat, the 6th Division had been ordered forward towards Etain by way of Mars la Tour, to bar the enemy also from the northern road to Verdun. When it reached the height of Tronville, whence could be seen how things really stood, the brigades wheeled to the right in the direction of Vionville and Flavigny. The artillery going on in advance, formed a formidable line of batteries, the fire of which prepared the way for a farther advance, and by half-past eleven the 11th Brigade had taken possession of Vionville in spite of heavy losses. From thence, and from the south, in conjunction with the 10th Brigade, an attack was then directed on Flavigny, which had been set on fire by shell-fire. The different detachments were hereabouts very much mixed, but by skilfully taking advantage of every fold of the ground, the individual regimental officers succeeded in getting their men steadily forward, in spite of the heavy fire of the hostile infantry and artillery. Flavigny was taken by assault, and one cannon and a number of prisoners fell into the hands of the brave Brandenburgers.
Vionville, Flavigny and the northern end of the forest of St. Arnould constituted the points of support of the Prussian front now facing to the east; but this front was more than four miles long, and the whole infantry and artillery were engaged up to the hilt all in one line. The second line consisted only of the 5th and 6th Cavalry Divisions and half of the 37th Brigade near Tronville.