In order to preserve the cadres and lineage of the divisions that had suffered heavy losses, to economise on supply and support effort, and probably to give an image of greater strength than really existed, the OKH decided to form Korpsabteilungen on the establishment of infantry divisions, i.e. containing three infantry regiments with two battalions each, an artillery regiment, and divisional troops (reconnaissance, anti-tank, pioneer, medical, and supply battalions). The staff of the Korpsabteilung was created from one of the divisions that were used to create them, while each of the infantry regiments represented one division. They were called Divisionsgruppe (Division Group), and each of the battalions in one of the Divisionsabteilung was called a Regimentsgruppe (Regimental Group).