_9th Cavalry Division_ (General de _XII Corps Reserve_ (General l’Espée). von Kirchbach). In the rear at the Camp de Mailly, The XXIV and XXIII keeping connection with the 4th Divisions; across the Army across a gap of about 12 Châlons highroad north of miles. Sommesous. The former, which had been besieging Givet, could only join 4th ARMY (General de LANGLE DE on September 7. It was CARY), (H.Q., Brienne). turned south-west against Foch, the XXIII south-east _21st Corps_ (General Legrand). against de Langle. 13th and 43rd Divisions (Generals _XIX Corps_ (General von Baquet and Lanquetot). From the Laffert). Vosges. Detrained on the evening of September 8, and engaged On September 6, was south September 9 on the left, east of of Châlons, west and the Camp de Mailly. north-west of Vitry, facing de Langle’s left. _17th Corps_ (General J. B. Dumas). 33rd and 34th Divisions (Generals IV ARMY (DUKE Albrecht Guillaumat and Alby). From of WÜRTEMBERG), (H.Q., Courdemanges to Sompuis. Triaucourt). _12th Corps_ (General Roques). _VIII Corps Active_ (General Tulffe v. Tscheppe u. 23rd and 24th Divisions (Generals Weidenbach). Masnon and Descoings), reduced by previous casualties to about 6 Of Coblenz. North-east of effective battalions. At Vitry and Vitry. Courdemange. The 23rd Division was lent to the 17th Corps till after _VIII Corps Reserve_ the passage of the Marne. (General von Egloffstein). _Colonial Corps_ (General Lefebvre). About Ponthion.