In December the 15th Landwehr Regiment, which had formed the garrison of Thionville at the outbreak of the war, and was in the Vosges after a stay near Morhange, replaced the two battalions of Landsturm (which had been formed into the 115th Landsturm Regiment in July) sent to Serbia.
1916.
Lorraine.
1. In 1916 the division held the sector Abaucourt-Bezange wood.
In August the 9th Jager Battalion entrained for Galicia.
2. On September 15, 1916, the staff of the 61st Reserve Brigade and the 71st Landwehr Regiment were transferred to the 215th Division, a new formation. The 13th Landwehr Division then received its definite organization: 15th Landwehr Regiment, 60th Landwehr Regiment, 82d Landwehr Regiment (4 battalions each).
1917.
Lorraine.
1. Relieved on the Lorraine front in the beginning of February, 1917, the 13th Landwehr Division was concentrated in the Chateau Salins front, entrained about the middle of February and sent by way of Metz-Longuyon-Montmedy-Sedan-Laon to the neighborhood of La Fère. It detrained at Versigny. One battalion was taken from each of its regiments to form the 328th Landwehr Regiment, destined to be a part of the 25th Landwehr Division.
2. Until March 18 the 13th Landwehr Division did work along the line Moy-La Fère-Fresne, where the German withdrawal was stopped.