The French Fifth Army had already moved to hold the line of the River Sambre, with its right in touch with Namur. Cavalry patrols had been thrown forward to Ligny and Gembloux, where they skirmished with uhlans. Charleroi was made French headquarters. It was the center of extensive coal-mining and steel industry. Pit shafts and blast furnaces dominated the landscape. Historically it was the ground over which Bluecher's Fourth Army Corps marched to the support of the British at Waterloo. Now the British were supporting the French upon it against their former ally. On Thursday, August 20, 1914, the British took up their position on the French left. Their line ran from Binche to Mons, then within the French frontier stretched westward to Conde. From Mons to Conde it followed the line of the canal, thus occupying an already constructed barrier. Formerly Conde was regarded as a fortress of formidable strength, but its position was not held to be of value in modern strategy. Its forts, therefore, had been dismantled of guns, and its works permitted to fall into disuse. But the fortress of Maubeuge lay immediately in rear of the British line. In rear again General Sordet held a French cavalry corps for flank actions. In front, across the Belgian frontier, General d'Amade lay with a French brigade at Tournai as an outpost. Before proceeding to British headquarters, General French held a conference with General Joffre, Commander in Chief of all the French armies. Until the outbreak of the war, General Joffre was practically unknown to the French people. He was no popular military idol, no boulevard dashing figure. But he had seen active service with credit, and had climbed, step by step, with persevering study of military science into the council of the French General Staff. As a strategist his qualities came to be recognized as paramount in that body. A few years previously he had been intrusted with the reorganization of the French army, and his plans accepted. Therefore, when war with Germany became a certainty, it was natural the supreme command of the French army should fall to General Joffre. CHAPTER VI CAMPAIGNS IN ALSACE AND LORRAINE