Once more considering the source of the Marne, near Langres, it will be noted that the River Meuse rises near by, flowing north by east to Toul, and then north-northwest past Verdun to Sedan, where it turns due north, flowing through the Ardennes country to Namur, in Belgium. To the east of the Meuse lies the difficult forest clad hill barrier, known as the Hills of the Meuse; to the east extends (as far as Triaucourt) the craggy and broken wooded country of the Argonne, a natural barrier which stretches southward in a chain of lakes and forests.
West of this impassible country of the Meuse and the Argonne lies the plain of Champagne-Pouilleuse, which is almost a steppe, bare and open, only slightly undulating, overgrown with heath, and studded here and there by small copses of planted firs, naught but a small portion of the whole being under cultivation. Between the Forest of the Argonne and this great plain, which is over a hundred miles long from north to south and forty miles in width, lies a short stretch of miniature foothills, with upland meadows here and there, but crossed in every direction by small ravines filled with shrubs and low second-growth timber. Here lies the source of the Aisne, a river destined to live in history; and on the farther side begins the great plain.
On the west of the plain of Champagne rises, 300 feet, with a curious clifflike suddenness, the Plateau of Sézanne. The effect is as though a geological fault had driven the original plateau from north to south throughout its entire length, and then as though there had been a general subsidence of the plain, giving rise to the clifflike formations known as Les Falaises de Champagne, at the foot of which runs the road from La Fère-Champenoise to Rheims.
The disposition and arrangement of the German forces is next to be considered. It can be assumed that their objective was Paris. It is also worthy of remembrance that the German tactical method has always favored the envelopment of the enemy's flanks rather than a frontal attack aiming to pierce the enemy's center, which latter was a favorite method of Napoleon I to reach decision.
The tactical method of envelopment demands great numerical superiority, and on account of the extreme extension of front necessitated is apt to become dangerous as perforce the center is left weak. Attempts to envelop, with which the observer is confronted again and again when considering the military movements of the Central Powers on the western battle front, were revealed on the morning of September 3, 1914, in the position occupied by the German forces, and, correspondingly, in the arrangement of the allied armies.
The German right, on September 3, 1914, and September 4, 1914, at which time it was nearest to its desired goal of Paris, held the banks of the Marne from Epernay to the banks of the little tributary the Ourcq, which runs into the Marne from the north. This extreme right comprised the Second Corps and the Fourth Reserve Corps, encamped on the western bank of the little stream the Ourcq; while the Fourth Corps was given the honor of the tip of the right, being camped on the Marne at La Ferté-sous-Jouarre, supported by the Third Corps, the Seventh Corps and the Seventh Corps Reserve. The Ninth Cavalry Division occupied an advanced position west of Crécy and the Second Cavalry Division occupied an advanced position near the British army, north of Coulommiers. These troops constituted the First German Army, under the command of General von Kluck.
The Allies' left, confronting this position, held strong reserves, and by the nature of the ground itself, was well placed to prevent any enveloping movement, dear to the German school of military tactics. It rested securely on the fortress of Paris, believed by its constructors to be the most fully fortified city in the world, and should the German right endeavor to encircle the left wing of the Allies, should it develop a farther westerly movement, it would but come in contact with the outer line of those defenses and thence be deflected in such an enormous arc as to thin the line beyond the power of keeping it strong enough to resist a piercing attack at all points. Clearly, then, as long as the extreme left of the Allies remained in contact with the defenses of Paris, an enveloping movement was not possible on the easterly flank.
Facing the German extreme right, was the Sixth French Army, one of the great reserves of General Joffre, which had been steadily building up since August 29, 1914, with its right on the Marne and its left at Betz, in the Ourcq Valley, encamped on the western side of that stream, facing the Second and Fourth Corps of the Germans. The strengthening of that army from the forces at Paris was hourly, and while three or four days before it had been felt that the Sixth French Army was too weak to be placed in so vital a point—that it should have been supplemented with the Ninth Army—the results justified the French generalissimo's plans and more than justified his confidence in the British Army, or Expeditionary Force, which faced the tip of the German right wing drive and was encamped on a line from Villeneuve le Comte to Jouy le Chatel, the center of the British army being at a point five miles southeast of Coulommiers. This army was under the command of General Sir John French.
The right center of the German line was held by General von Bülow's army, consisting of the Ninth Corps, the Tenth Corps, the Tenth Reserve Corps, and the Guard Corps. This army also was encamped upon the Marne, stretching from the eastern end of General Von Kluck's army as far as Epernay. This army thus held the Forests of Vassy but was confronted by the marshes of St. Gond.
Confronting this right center was, first of all, General Conneau's Cavalry Corps, which was in touch with the right wing of the British army under Sir John French. Then, holding the line from Esternay to Courtaçon lay the Fifth French Army under General d'Espérey. Full in face of the strongest part of the German right center stood one of the strongest of General Joffre's new reserves, the Ninth Army under General Foch, with the marshes of St. Gond in front of him, and holding a twenty-mile line from Esternay, past Sézanne to Camp de Mailly, a remarkably well-equipped army, very eager for the fray.
The hastily replenished corps, largely of Saxons, which had been General von Hausen's army, lay next to General von Bülow, a little north of Vitry, and as it proved, a weak spot in the German line. The left center of the attacking force was under the command of the Duke of Württemberg and extended across the whole southern end of the plain of Champagne to the upper streams of the Aisne south of St. Menhould. The extreme left of this advanced line was the army of the Imperial Crown Prince, holding the old line on the Argonne to the south of Verdun. In close relation to this advanced line, but not directly concerned with the battles of the Marne, were the armies of the Bavarian Crown Prince, encamped in the plateau of the Woevre, engaged largely in the task of holding open the various lines of communication, while far to the south, in the vicinity of the much battered little town of Mulhouse, lay the remains of the decimated army of the Alsace campaigns under General von Heeringen.
Facing this left center came General Langle's Fourth French Army, covering the southern side of the plain of Châlons, it lay south of Vitry-le-François, and faced due north. On this army, it was expected, the brunt of the drive would fall. At this point the French battle line made a sharp angle, the Third French Army, commanded by General Sarrail, occupying a base from Bar-le-Duc to Verdun. It thus faced almost west, skirting the lower edge of the Forest of Argonne. At the same time it was back to back with the Second French Army, which covered the great barrier of forts from Verdun to Toul and Epinal, while the First French Army held the line from Epinal to Belfort.
CHAPTER XIII
ALLIED AND GERMAN BATTLE PLANS
So much for the actual disposition of the armies. The question of preponderance of numbers, of advantages of position, and of comparative fighting efficiency is the next factor with which to be reckoned. The numbers were fairly evenly matched. About twelve days before this fateful day of September 3, 1914, there were approximately 100 German divisions as against seventy-five French, British, and Belgian divisions. But, during those twelve days, French and British mobilization advanced with hectic speed, while, at the same time, Germany was compelled to transfer ten or perhaps fifteen of her divisions to the eastern theater of war. It follows, therefore, that there were about 4,000,000 soldiers in all the armies that confronted each other in