It was in conversation, that morning, with one of the veterans of the army, a non-commissioned officer who had seen active service in Morocco and Madagascar, and who was studying with the aim of winning his shoulder-straps, that Horace gained his first clear idea of the huge scale upon which modern war operations are conducted. Evidently the veteran had worked out for himself the main elements of General Joffre's plan, and Horace's information concerning the location of the German troops revealed further developments of the campaign to the old soldier's eyes. Resting in readiness to support the advance line should the reserves be called on, the veteran delivered himself oracularly as to the situation. "The battle-line now," he said, "is a right angle running north from Dinant to Namur and then west from Namur to Condé. The south to north line, where we are now, is held by the Fourth French Army, under General Langle de Cary. We're protected by the gorge of the Meuse, and it's our little job to try and keep the Boches[13] from crossing. "Namur is the bend of the angle. It is strongly fortified, with nine forts in ring formation, and is held by the Belgian army under General Michel. From Namur westward through Charleroi to Binche is held by the Fifth French Army under General Lanrezac, and is protected by a narrow river, the Sambre. Westward from Binche, through Mons to Condé, is held by the British Expeditionary Force under Sir John French, only lightly protected by the Mons barge-canal. The first attack will fall on Namur. I hear it has already started." "It won't last long," interjected Croquier, "for the lad and I saw the 42-centimeter guns (16.5-inch howitzers) on their way to Namur. Once those siege-guns get into position, the forts are gone. They won't be able to stand ten shells apiece." "The forts will hold for a week," the veteran answered, for he discounted the rumors which had come of the power of the great siege-guns. "In any case, they'll hold for three days, and that's as long as necessary. So, you see, the English face Von Kluck, the Belgians face Von Buelow--and we're holding Würtemberg's army." "All very well," said the hunchback, "but, as I've told you, we saw another army coming up through the Ardennes." "If there were, our airmen would have seen it," said the veteran, "and our staff would know all about it. You're mistaken, that's all. The battle-line is just about the way I've said it and the real clash is between the French and German systems of strategy." "Are they very different?" asked Horace. "I should have thought that strategy was pretty exact and every one worked in more or less the same way."