The first battle of the Marne was wholly a French operation. The British were close at hand, but had no share in the victory. Generals Gallieni and Manoury, acting under instructions from Marshal Joffre, were driven by automobile to the headquarters of the British commander, Sir John French, in the village of Melun. They explained in detail General Joffre’s plan of attack upon the advancing German army. An urgent request was made that the British army halt its retreat, face about, and attack the two corps of von Kluck’s army then confronting the British. Simultaneously with this attack General Manoury’s forces were to fall upon the flank and the rear guard of von Kluck along the River Ourcq. This operation was planned for the next day, September 5th. Sir John French replied that he could not get his tired army in readiness for battle within forty-eight hours. This would delay the British attack in all probability until September 7th.
Joffre’s plan of battle, however, would admit of no delay. The case was urgent; there was grave danger of a union between the great forces headed by the Crown Prince and those under von Kluck. He resolved to go ahead without the British, and ordered Manoury to strike as had been planned.
He fixed as an extreme limit for the movement of retreat, which was still going on, the line of Bray-sur-Seine, Nogent-sur-Seine, Arcis-sur-Aube, Vitry-le-François, and the region to the north of Bar-le-Duc. This line might be reached if the troops were compelled to go back so far. They would attack before reaching it, as soon as there was a possibility of bringing about an offensive disposition, permitting the co-operation of the whole of the French forces.
On September 5 it appeared that this desired situation existed.
The First German army, carrying audacity to temerity, had continued its endeavor to envelop the French left, had crossed the Grand Morin, and reached the region of Chauffry, to the south of Rebais and of Esternay. It aimed then at cutting Joffre off from Paris, in order to begin the investment of the capital.
The Second army had its head on the line Champaubert, Etoges, Bergères, and Vertus.
The Third and Fourth armies reached to Châlons-sur-Marne and Bussy-le-Répos. The Fifth army was advancing on one side and the other from the Argonne as far as Triaucourt-les-Islettes and Juivecourt. The Sixth and Seventh armies were attacking more to the east.
The First German Dash for Paris
The French left army had been able to occupy the line Sezanne, Villers-St. Georges and Courchamps. This was precisely the disposition which the General-in-Chief had wished to see achieved. On the 4th he decided to take advantage of it, and ordered all the armies to hold themselves ready. He had taken from his right two new army corps, two divisions of infantry, and two divisions of cavalry, which were distributed between his left and his center.