For that purpose a new firm was founded the Kleinbahn Celle-Soltau und Munster, in which the previous owners and the districts of Fallingbostel and Soltau as well as other local authorities participated.

During Germany's rearmament prior to the Second World War, several sidings were converted to military depots (Scheuen, Bergen).

In 1969, after the most important intermediate stations had been equipped with electric signal boxes with push-button routing, the line from Celle became remotely controlled using a central block system.

The addition of military trains meant that numbers rose considerably during the First and Second World Wars.

The goods trains hauled agricultural products in the main, but the transportation of logs was also important.

Even after the Second World War further military facilities were added and, on many stations, tank-loading ramps were built.