Meantime the German advance had been steady and considerable. All these attacks follow the same course--Ypres, Artois, Champagne, Dunajec. There is first the tremendous artillery concentration of the assailant; then the bombardment which abolishes the first and second line trenches of the defenders; then the infantry attack which takes these ruined trenches and almost invariably many thousands of prisoners and scores of guns. But now the situation changes. The assailant has passed beyond the effective range of his own heavy artillery, which cannot be immediately advanced because of its weight; he encounters a line of trenches that has not been levelled, he has come under the concentrated fire of his foe's heavy and light artillery without the support of his own heavy artillery, and all the advantage of surprise has gone. What happened at Verdun is what happened in the Champagne. The German advance was quite as successful--rather more successful than the French last September; it covered three or four miles on a considerable front, and it even reached Douaumont, one of the old forts and the fort which was placed on the highest hill in the environs of Verdun. Thousands of prisoners had been captured and many guns taken. But at this point the French resistance stiffened, as had the German last year. French reserves and artillery arrived. Pétain and Castelnau arrived. There was an end of the rapid advance and there began the pounding, grinding attack in which the advantage passed to the defender. It was just what happened at Neuve Chapelle so long ago when we first saw this kind of fighting exemplified completely. In the new attacks the Germans still gained ground, but they gained ground because the French withdrew from positions made untenable through the original German advance at other points. They consolidated their line, organized their new front. Ten days after the attack had begun it had ceased to be a question of Verdun, just as in a shorter time the French had realized last September that they could not break the German line in Champagne. But like the French in Champagne, like the British at Neuve Chapelle, the Germans persevered, and in consequence suffered colossal losses, exactly as the French and British had. To understand the German tactics you must recognize two things. The Germans had expected to take Verdun, and they had unquestionably known that the French military command did not intend at the outset to hold the town. They had advertised the coming victory far and wide over the world; they had staked much upon it. Moreover, in the first days, when they had taken much ground, when they had got Douaumont and could look down into Verdun, they had every reason to believe that they possessed the key to the city and that the French high command was slowly but steadily drawing back its lines and would presently evacuate the city.