2. It detrained August 9–11 at Hermeskeil (southeast of Treves); entered Luxemburg the 16th (by way of Remich); crossed Luxemburg on the 19th; entered Belgium on the 20th. On the 22d it fought at Neufchateau; on the 22d, at Tremblois; crossed the Meuse on the 28th. To the west of the Argonne the 25th Reserve Division advanced to the area of Revigny. At the battle of the Marne it fought on the Saulx, in the neighborhood of Brabant le Roy (Sept. 7–10). It retired by way of Ste. Menehould, Moinemout, to the south of Cernay en Dormois (Sept. 14).
Flanders.
3. In October the 25th Reserve Division was sent to Flanders, south of the Lys. Toward the end of November it occupied a sector north of Wytschaete.
Russia.
4. In December the division was transferred to the Eastern Front. It took part, with the Fabeck Corps, in the operations on the Bzura (December, 1914, to February, 1915).
1915.
Galicia.
1. At the end of February, 1915, it was engaged in the Carpathians north of the Dniester (Von der Marwitz Detachment); in June at Przemysl, then at Lemberg.
Brest-Litowsk.
2. In July, the 25th Reserve Division took part in the offensive on Brest-Litowsk. Its successes occasioned it heavy losses; the 5th Company of the 168th Infantry Regiment received not less than 199 men as replacements from June 19 to August 17.