2. At 6 A.M., on Aug. 23, I assembled the commanders of the First and Second Corps and cavalry division at a point close to the position and explained the general situation of the Allies, and what I understood to be Gen. Joffre's plan. I discussed with them at some length the immediate situation in front of us. From information I received from French Headquarters I understood that little more than one, or at most two, of the enemy's army corps, with perhaps one cavalry division, were in front of my position; and I was aware of no attempted outflanking movement by the enemy. I was confirmed in this opinion by the fact that my patrols encountered no undue opposition in their reconnoitring operations. The observations of my aeroplanes seemed also to bear out this estimate. About 3 P.M. on Sunday, the 23d, reports began coming in to the effect that the enemy was commencing an attack on the Mons line, apparently in some strength, but that the right of the position from Mons and Bray was being particularly threatened. The commander of the First Corps had pushed his flank back to some high ground south of Bray, and the Fifth Cavalry Brigade evacuated Binche, moving slightly south; the enemy thereupon occupied Binche. The right of the Third Division, under Gen. Hamilton, was at Mons, which formed a somewhat dangerous salient; and I directed the commander of the Second Corps to be careful not to keep the troops on this salient too long, but, if threatened seriously, to draw back the centre behind Mons. This was done before dark. In the meantime, about 5 P.M., I received a most unexpected message from Gen. Joffre by telegraph, telling me that at least three German corps, viz., a reserve corps, the Fourth Corps and the Ninth Corps, were moving on my position in front, and that the Second Corps was engaged in a turning movement from the direction of Tournay. He also informed me that the two reserve French divisions and the Fifth French Army on my right were retiring, the Germans having on the previous day gained possession of the passages of the Sambre between Charleroi and Namur. 3. In view of the possibility of my being driven from the Mons position, I had previously [Transcriber: original 'previouly'] ordered a position in rear to be reconnoitred. This position rested on the fortress of Maubeuge on the right and extended west to Jenlain, southeast of Valenciennes, on the left. The position was reported difficult to hold, because standing crops and buildings made the siting of trenches very difficult and limited the field of fire in many important localities. It nevertheless afforded a few good artillery positions. When the news of the retirement of the French and the heavy German threatening on my front reached me, I endeavored to confirm it by aeroplane [Transcriber: original 'areoplane'] reconnoissance; and as a result of this I determined to effect a retirement to the Maubeuge position at daybreak on the 24th.