HISTORY.
(12th Landwehr Regiment: 3d Corps District—Brandenburg. 53d and 55th Landwehr Regiments: 7th Corps District—Westphalia.)
1915.
Oise.
1. The 15th Landwehr Division (Sack Division) was formed about the month of March, 1915, from two independent Landwehr brigades (the 10th and 27th) which had been holding, since September, 1914, the sectors of the Oise south of Noyon.
2. The 10th Brigade, entering Belgium on August 19, was at Tirlemont on September 1 and had been sent rapidly to the Oise at the beginning of the retreat from the Marne. It had gone into action at Blerancourt, Bellefontaine, Cuts, on September 15 and 16. The 27th Brigade, coming from Aix la Chapelle August 17, had advanced by way of Louvain, Douai, Cambrai, Bepaume, and Amiens and had likewise been in action on September 15 and 16 at Rivecourt and Nampcel.
3. After its formation the 15th Landwehr Division continued to occupy the Oise sector of Thiescourt (Ribecourt) until 1917.
1916.
1. The division held the Oise sector of Thiescourt (southwest of Noyon).