Suddenly, about nine o’clock, they were struck by shells fired from a battery which seemed to have sprung out of a rounded hill a few hundred yards to the west of Vionville. The missiles fell among the tents and burst about a squadron filing up in watering order to the tree-shaded pool. In quick succession three additional batteries appeared on the crest and opening fire added to the confusion below. Murat’s dragoons broke and fled and, accompanied by the baggage train, horses, carts, men, galloped and ran off towards Rezonville; and De Gramont’s troopers, further to the rear, mounted and retired in good order up the northern slopes, halting on the right of the 6th Corps. The batteries, six in number, then moved up to a height closer in to Vionville and smote the infantry camps. They were promptly answered by the guns of Frossard’s Corps, while his brigades stood to their arms, formed up and sprang forward with alacrity. About the same time, a solitary German battery, visible to the south, fired a few rounds into the French left and then withdrew over the crest unable to bear the storm of Chassepot bullets which were poured from the aroused and irritated infantry. The collision, so unwelcome to the French, had been brought about in this wise. Prince Frederick Charles had ordered the 3rd and 10th Corps and the 6th Division of Cavalry to start early in the morning and strike the Verdun road west of Rezonville. As General von Voights-Rhetz, commanding the 10th, intended to move upon St. Hilaire, beyond Mars la Tour, he instructed Von Rheinbaben to reconnoitre in the direction of Rezonville, increased his horse artillery, and supported him with an infantry detachment from Thiaucourt. About the same time that the 10th Corps advanced its foremost brigades from Thiaucourt, and the rest from Pont à Mousson, the 3rd Corps and the 6th Division of Cavalry also made for the hills west and south of Vionville, the right division proceeding by Gorze, and the left, by Buxières, towards Tronville. Thus these two Corps were moving on two parallel curves, the 3rd being next to the enemy, and the 10th on the outer and larger arc. The Prince and his Generals did not anticipate a battle, but they all hoped to fall in with and punish a rear-guard, or, by striking far to the westward, intercept and compel the French Army to halt and fight before it reached the Meuse. It was Rheinbaben’s abrupt and thorough home-thrust which revealed the fact that the French had not passed Rezonville, or, at least, that a large part of the Army was near that village. His advance-guard, three squadrons and a battery, had moved within musket-shot of De Forton’s camp “without encountering a single patrol;” and, taking advantage of such supineness, his artillery, hastening forward, created the panic near Vionville, which has already been described. Frossard’s Corps, which always behaved well, speedily took up defensive positions. Bataille occupied Vionville and Flavigny,