Instead, however, of facing and continuing his offensive against the forces opposed to him, he turned towards Sezanne. By doing that he exposed his flank to the Allied counter-stroke. This blunder can only be attributed to the combined influences of, firstly, hurry; secondly, bad information as to the strength and positions of the Allied forces; thirdly, the false impression formed from reports of victories unaccompanied by exact statements as to losses; and fourthly, and perhaps of most consequence, the failure of the Crown Prince of Germany in the Argonne. General von Kluck doubtless acted upon imperative orders. His incomplete information and the false impression his advance had created probably also led him to accept those orders without protest. But it should not be forgotten that the Commander primarily responsible for the blunder, and for the disasters it involved, was the Crown Prince of Germany. Primarily the Crown Prince of Germany was responsible, but not wholly. In the responsibility General von Kluck had no small share. He was misled. When the British force arrived at Creil General Joffre resolved upon and carried out a masterly and remarkable piece of strategy. The British army was withdrawn from the extreme left of the Allied line on the north-east of Paris, and transferred to the south-east, and its former place taken by the 6th French army. This move, carried out with both secrecy and rapidity, was designed to give General von Kluck the impression that the British troops had been withdrawn from the front. That the ruse succeeded is now clear. So far from being withdrawn, the British army was brought up by reinforcements to the strength of three army corps. Leaving out of account a force of that strength, the calculations of the German Commander were fatally wrong. Let us now see what generally were the movements of the German and of the Allied forces between September 3 and September 6 when the Battle of the Marne began. Leaving two army corps, the 2nd and the 4th Reserve corps, on the Ourcq to cover his flank and rear, General von Kluck struck south-east across the Marne with the 3rd, 4th, and 7th corps. The main body crossed the river at La Ferté-sous-Jouarre, and took the main route to Sezanne. Others crossed higher up between La Ferté-sous-Jouarre and Château-Thierry. For this purpose they threw bridges across the river. The Marne is deep and for 120 miles of its course navigable. These movements were covered and screened by the 2nd division of cavalry, which advanced towards Coulommiers, and the 9th division, which pushed on to the west of Crecy. Both places are south of the Marne and east of Paris. Writing of these events at the time, Mr. W. T. Massey, special correspondent of the _Daily Telegraph_, observed that:--