Bourges, the head-quarters of the 8th Army Corps, is one of the principal military stations of France, although not in itself a town of very great importance. Its training establishments rank very highly in the military life of the nation, including as they do a national cannon foundry, very extensive engineering works, and schools of artillery and pyrotechnics for the training of officers. Bourges is head-quarters for the departments of Cher, Côte-d'Or, Nièvre, Saône-et-Loire, and part of the department of Rhône. It is one of the chief arsenals of the Republic, and occupies a position near the geographical centre of France. The town dates back to Roman time, and had the doubtful distinction of being destroyed by Julius Cæsar, at about the time of his invasion of Britain. Châlons-sur-Marne has been a centre of conflict in most of the wars in which France has been engaged from very early times. It was destroyed by the Vandals, by Attila and his ruthless Huns, and by the Burgundians in mediæval times, and is situated on a plain which has always been considered an ideal battlefield, and has served that purpose throughout the centuries up to the present day. It is the head-quarters of the 6th Army Corps, and is the military centre for the departments of Ardennes, Aubes, Meurthe-et-Moselle, Marne, Meuse, and Vosges. It is 107 miles east of Paris by rail, and is one of the principal brewing centres of France, the wine trade in which it used to be engaged having gone northward to Rheims. In the scheme under which the French Army is constituted, Châlons is one of the centres for early mobilisation of troops of the first line with a view to the defence of the north-eastern frontier. Clermont-Ferrand is head-quarters for the departments of Loire, Haute-Loire, Allier, Cantal, Puy-de-Dôme, and part of the department of Rhône. It is the head-quarters of the 13th Army Corps, and is a town of about 55,000 inhabitants, situated 260 miles directly south of Paris by rail. It may be regarded as one of the first centres of systematic mobilisation of which France affords historical record, for at the end of the eleventh century Peter the Hermit preached the first Crusade in the church of Notre Dame at Clermont-Ferrand. Grenoble, dominated by Mont Rachais, a hill rising nearly 3500 feet above sea-level, ranks as a first-class fortress, and is the military centre for the departments of Hautes-Alpes, Drôme, Isère, Savoie, Haute-Savoie, and part of the department of Rhône. It is the head-quarters of the 14th Army Corps, and is one of the most beautiful of French cities. In consequence of this it is a well patronised tourist centre, and as such is a popular station among the conscripts.