Worst of all, from the allied point of view, there now came a difference in opinion between the French General Staff and the French Civil Government. The former wished to retire behind the Meuse and evacuate the eastern forts and trenches, thereby gaining a strong defensive line, but surrendering Verdun. The Government felt that such a retreat would be accepted as a grave disaster, would depress the French people, and result in a political overturn.
At the outset the general staff seems to have adhered to its view, and for some days the German advance was steady. Even Fort Douaumont, on the outer rim of the old permanent fortifications, was lost, and the German press announced the fall of the city itself. But in the end the army listened to the Government, Castelnau and Pétain went to the front to organize the defense. By the middle of March the first crisis was about over and the French had restored their line, the most expensive detail in their defense. But they had not been able to retake Douaumont, and German possession was to prove a thorn in their side thenceforth.
With the great general attack of April 9, 1916, the first phase of the battle for Verdun was over. This check abolished all chance of a piercing of the French lines, of a second Dunajec. It assured to the French time to complete their second- and third-line defenses, and it gave ample evidence that the dangers of the first hours, due to failures and errors which cost many generals their positions, were at an end. Above all, it demonstrated that the wonderful motor-transport system which had been improvised had proved adequate to save a city deprived of all railroad communications.
LATER PHASES
Still the Germans kept on. Halted on the east bank, they transferred their attack to the west, and Hill 304 and Le Mort Homme became famous the world over. But their advances were slight and their losses were tremendous. French tactics were now disclosed. It was the purpose of the French to exact the very heaviest price for each piece of ground that they defended, but they held their lines with very small contingents, and, save in the case of a few vital points, surrendered the positions whenever the cost of holding them was too great.
German high command had seen its larger aims fail. Why did it continue to assail Verdun after the chance of piercing the French lines had passed and when the cost was so terrific? The answer is not wholly clear, but we do know that the concentration of artillery and men had taken months; these could not quickly be moved elsewhere. Such a change in plans would mean the loss of several months, which would be improved by the British and the Russians; it would give France the "lift" of a great victory.
Conversely it was clear that, while the French lines could not be pierced, Verdun might be taken and the moral value of the capture would be enormous in Germany, France, and the neutral world, although the military value would be just nothing. Again, there remained the fair chance that the continued pressure upon France would lead the French to ask the British to attack, and the premature attack would spoil the allied offensive, obviously preparing.
Against this chance the Germans had massed not less than 800,000 troops along the British front. Meantime they told the world that Verdun was exhausting France, that it was making an allied offensive impossible, and they used their slow but considerable advances, which resulted from the French policy of "selling" their positions at the maximum of cost to the Germans and minimum of loss to themselves, to convince the world that they were systematically approaching Verdun and would take it at the proper moment.
This phase lasted from April 9, 1916, down to the opening of July. During that time the Germans pushed out from Douaumont and captured Vaux; they crowded up and over Dead Man's Hill and up the slope of Hill 304; by July 1, 1916, they had pushed the French right back to the extreme edge of the hills, on the east bank of the Meuse, and the French were just holding the inside line of forts—Belleville, Souville, and Tavannes—with their backs to the river and with German trenches coming right up to the ditches of these three forts.
By July 1, 1915, the French were in their last ditch before Verdun—that is, on the east bank—but on July 1, 1916, there began that allied offensive at the Somme which changed the whole face of the western operations. Thus, by August 1, 1916, the Germans had been compelled to remove many troops from Verdun and the French were able to take the offensive here again, and by August 6, 1916, had made material progress in retaking portions of the ground they had "sold" the Germans for so great a price in previous weeks.