In the falling back of the several German armies from the Marne to the Aisne, the Germans had kept possession of the chief forts of the district around Rheims. No strong effort had been made to dislodge them, for the forward movement of the Allies had been directed against the fortified heights of the Aisne, facing the Soissons-Craonne defense. It will be remembered that the armies of General Foch and Langle, especially the latter, had taken no part in the first phase of the Battle of the Aisne, but had stubbornly thrown back the armies of the Duke of Wuerttemberg, which had combined with those of the crown prince. The right wing of this large conjoined army had held the fort sites around Rheims and especially they had made full use of the chief fort on the wooded heights of Nogent l'Abbesse, a trifle less than half a mile from the cathedral city and therefore within easy destructive shelling range. The heavy artillery was planted here, the infantry intrenched around it, and strong defense trenches were established along the River Suippe that runs into the Aisne near Berry-au-Bac. On Friday, September 18, 1914, the first movement of the second phase was begun, when the Germans launched a sharp counterattack on the French center. This was the first German offensive movement since their retreat from the Marne, and it was powerful and well handled. General Foch fell back into defensive positions, but had much ado to hold his own. He evaded giving battle around Rheims and took up a position at Souain, which he held with the jaunty obstinacy he had displayed so often in the retreat through northern France. It was obvious that he could not hold out long, but by clever generalship, and especially by an extraordinarily brilliant use of the cavalry arm, he held off the army for that day. That night strong reenforcements came to his aid, and on September 19, 1914, the balance of the forces was more nearly equal. On September 19, 1914, therefore, the situation of the armies was much as follows: The Germans, acting under the general command of Field Marshal von Heeringen, controlled Rheims under the gunfire of their heavy artillery from two points, the heights of Nogent l'Abbesse to the southeast of Rheims, and the hill of Brimont a little over half a mile to the northeast. Their right flank was covered by the powerful defenses of the Aisne and the guns of the Craonne plateau, their left flank was a series of intrenchments along the river Suippe, which merged into the second line of defense of the main army under the Duke of Wuerttemberg.