The following is a list of Divisions of the Imperial German Army.
The basic tactical formation was the division.
A standard Imperial German division was organised into: One of the divisions in a corps area usually also managed the corps Landwehr region (Landwehrbezirk).
They were reorganised, receiving engineer companies and other support units from their corps, and giving up most of their cavalry to form cavalry divisions.
As World War I progressed, additional divisions were formed, and by wars' end, 251 divisions had been formed or reformed in the German Army's structure.