The troops which entered Alsace on August 7, 1914, to the number of 18,000 to 20,000, belonged to the army of the frontier.
This first army, which was under the orders of General Dubail, was intrusted with the mission of making a vigorous attack and of holding in front of it the greatest possible number of German forces. The general in command of this army had under his orders, if the detachment from Alsace be included, five army corps and a division of cavalry. His orders were to seek battle along the line Saarburg—Donon, in the Bruche Valley, at the same time possessing himself of the crests of the Vosges as well as the mountain passes. These operations were to have as their theaters: (1) the Vosges Mountains, (2) the plateau of Lorraine to the northwest of Donon, and (3) the left bank of the Meurthe. This left bank of the Meurthe is separated from the valley of the Moselle by a bristling slope of firs, which is traversed by a series of passages, the defiles of Chipotte, of the Croix Idoux, of the Haut Jacques d'Anozel, of Vanemont, of Plafond. In these passes, when the French returned to the offensive in September, 1914, furious combats took place. The German forces opposed to this first army consisted of five active army corps and a reserve corps.
The first French army, after a violent struggle, conquered the passes of the Vosges, but the conquest was vigorously opposed and took more time than the French had reckoned on. As soon as it had become master of the Donon and the passes, the first French army pushed forward into the defile of Saarburg. At St. Blaise it won the first German colors, took Blamont and Cirey (August 15, 1914), seized the defiles north of the canal of the Marne and the Rhine, and reached Saarburg. Here a connection was established with the army of Lorraine, which had commenced its operations on the 14th. A violent battle ensued, known under the name of the Battle of Saarburg. The left wing of the French army attacked August 19, 1914; it hurled itself at the fortified positions, which were copiously fringed with heavy artillery. In spite of the opposition it made progress to the northwest of Saarburg.
On the 20th the attack was renewed, but from the beginning it was evident that it could not succeed and that the duty intrusted to the Eighth Army Corps of opening up the way for the cavalry corps could not be accomplished. This army corps had gone through a trying ordeal as a result of the bombardment by the heavy German artillery established in fortified positions, covering distances all measured in advance, with every group and French battery presenting a sure target and the action of the French cannon rendered useless.
If the left wing of the First Army found itself checked, the center and the right on the other hand were in an excellent position and were able to advance. But at this point (August 21, 1914) the Second French Army the army of Lorraine met a serious reverse in the region of Morhange and was compelled to retreat. This retreat left the flank of the First Army gravely unprotected, and as a consequence this army was also obliged to fall back. This rear-guard movement was accomplished over a very difficult piece of country down to the Baccarat-Ban de Sapt-Provenchère line, south of the Col du Bonhomme. It was found necessary to abandon the Donon and the Col de Sapt.
The task committed to the Second Army, that of Lorraine under De Castlenau, was to protect Nancy, then to transfer itself to the east, advancing later to the north and attacking in a line parallel to that taken by the First Army on the Dieuze-Château Salins front in the general direction of Saarbrücken. Its mission was therefore at once both offensive and defensive: to cover Nancy and continue toward the west the attack of the First Army.
After having repulsed, August 10 and 11, 1914, the strong German attacks in the region of Spincourt and of Château Salins the Second Army took the offensive and went forward almost without stopping during four days of uninterrupted fighting. Penetrating into Lorraine, which had been annexed, it reached the right bank of the Selle, cut off Marsal and Château Salins, and pushed forward in the direction of Morhange. The enemy fell back; at Marsal he even left behind enormous quantities of ammunition.
As a matter of fact, he fell back on positions that had been carefully fortified in advance and whence his artillery could bombard at an almost perfectly accurate range. August 20, 1914, made a violent counterattack on the canal of Salines and Morhange in the Lake district. The immediate vicinity of Metz furnished the German army with a vast quantity of heavy artillery, which played a decisive rôle in the Battle of Morhange. The French retreated, and during this rear-guard movement the frontier city of Lunéville was for some days occupied by the Germans.
Thus the First and Second Armies failed in their offensive and saw themselves obliged to retreat, but their retreat was accomplished under excellent circumstances, and the troops, after a couple of days of rest, found themselves in a condition again to take the offensive. The First Army gave energetic support to the Second Army, which was violently attacked by the Germans in the second week of August. The German attack, which was first arrayed against Nancy, turned more and more to the east.
The battle, at first waged in the Mortagne basin, was gradually extended to the deep woods on the left bank of the Meurthe and on to Chipotte, Nompatelize, etc. The battles that have been named the Battle of Mortagne, the Battle of the Meurthe, the Battle of the Vosges, all waged by the First Army, were extremely violent in the last week of August and the first two weeks of September. These combats partly coincided with the Battle of the Marne; they resulted, at the end of that battle, in the German retreat. The Second Army renewed the offensive August 25, 1914; it decisively checked the march of the German army and commenced to force it back.
The instructions issued to General de Castelnau directed him everywhere to march forward and make direct attacks. The day of August 25, 1914, was a successful day for the French; everywhere the Germans were repulsed. From August 26 till September 2, 1914, the Second Army continued its attacks.
At this point the commander in chief having need of important forces at his center and at his right relieved the Second Army of much of its strength. This did not prevent it from engaging in the great Battle of Nancy and winning it. It was September 4, 1914, that this battle began and it continued till the 11th, the army sustaining the incessant assaults of the Germans on its entire front advanced from Grand Couronne. The German emperor was personally present at this battle. There was at Dieuze a regiment of white cuirassiers at whose head it was his intention to make a triumphal entry into Nancy. Heavy German artillery of every caliber made an enormous expenditure of ammunition; on the Grand Mont d'Amance alone, one of the most important positions of the Grand Couronne of Nancy, more than 30,000 howitzer shells were fired in two days. The fights among the infantry were characterized on the entire front by an alternation of failure and success, every point being taken, lost and retaken at intervals.
The struggle attained to especial violence in the Champenoux Forest. On September 5, 1914, the enemy won Maixe and Remereville, which they lost again in the evening, but they were unable to dislodge the French from the ridge east of the forest of Champenoux. The Mont d'Amance was violently bombarded; a German brigade marched on Pont-à-Mousson. The French retook Crevic and the Crevic Wood.
On the 7th the Germans directed on Ste. Geneviève, north of the Grand Couronne, a very violent attack, which miscarried. Ste. Geneviève was lost for a time, but it was retaken on the 8th; more than 2,000 Germans lay dead on the ground. The same day the enemy threw themselves furiously on the east front, the Mont d'Amance, and La Neuvelotte. South of the Champenoux Forest the French were compelled to retire; they were thrown back on the ridge west of the forest. On the 9th a new bombardment of Mont d'Amance, a struggle of extreme violence, took place on the ridge west of the forest of Champenoux, the French gaining ground. General Castelnau decided to take the direct offensive, the Germans giving signs of great fatigue. On the 12th they retired very rapidly. They evacuated Lunéville, a frontier town, where they left a great quantity of arms and ammunition. The French began