The 20th Division was a unit of the Prussian/German Army. It was formed on October 11, 1866, and was headquartered in Hannover. The division was subordinated in peacetime to the X Army Corps. The division was disbanded in 1919 during the demobilization of the German Army after World War I.
Recruitment
During the Franco-Prussian War, the division was a mixed unit, with Hannoverian, Brunswick and Westphalian elements. It was subsequently reorganized so that it was recruited primarily from the former Kingdom of Hannover, which had become the Prussian Province of Hanover after 1866, along with the Duchy of Brunswick.
During wartime, the 20th Division, like other regular German divisions, was redesignated an infantry division. The organization of the 20th Infantry Division in 1870 at the beginning of the Franco-Prussian War was as follows:
39. Infanterie-Brigade
*Infanterie-Regiment Nr. 17
*Infanterie-Regiment Nr. 56
40. Infanterie-Brigade
*Infanterie-Regiment Nr. 70
*Braunschweigisches Infanterie-Regiment Nr. 92
Jäger-Bataillon Nr. 10
Dragoner-Regiment Nr. 16
Pre-World War I organization
German divisions underwent various organizational changes after the Franco-Prussian War. As noted above, the 20th Division was reorganized to become primarily a Hannover/Brunswick unit. The organization of the 20th Division in 1914, shortly before the outbreak of World War I, was as follows:
39. Infanterie-Brigade
*Infanterie-Regiment von Voigts-Rhetz Nr. 79
*4. Hannoversches Infanterie-Regiment Nr. 164
40.Infanterie-Brigade
*2. Hannoversches Infanterie-Regiment Nr. 77
*Braunschweigisches Infanterie-Regiment Nr. 92
20.Kavallerie-Brigade
*2. Hannoversches Dragoner-Regiment Nr. 16
*Braunschweigisches Husaren-Regiment Nr. 17
20. Feldartillerie-Brigade
*Feldartillerie-Regiment von Scharnhorst Nr. 10
*Niedersächsisches Feldartillerie-Regiment Nr. 46
Landwehr-Inspektion Hannover
Order of battle on mobilization
On mobilization in August 1914 at the beginning of World War I, most divisional cavalry, including brigade headquarters, was withdrawn to form cavalry divisions or split up among divisions as reconnaissance units. Divisions received engineer companies and other support units from their higher headquarters. The 20th Division was again renamed the 20th Infantry Division and its initial wartime organization was as follows:
39. Infanterie-Brigade
*Infanterie-Regiment von Voigts-Rhetz Nr. 79
*4. Hannoversches Infanterie-Regiment Nr. 164
*Hannoversches Jäger-Bataillon Nr. 10
40.Infanterie-Brigade
*2. Hannoversches Infanterie-Regiment Nr. 77
*Braunschweigisches Infanterie-Regiment Nr. 92
Stab und "1/2"-Regiment/Braunschweigisches Husaren-Regiment Nr. 17
20. Feldartillerie-Brigade
*Feldartillerie-Regiment von Scharnhorst Nr. 10
*Niedersächsisches Feldartillerie-Regiment Nr. 46
2.Kompanie/Hannoversches Pionier-Bataillon Nr. 10
3.Kompanie/Hannoversches Pionier-Bataillon Nr. 10
Late World War I organization
Divisions underwent many changes during the war, with regiments moving from division to division, and some being destroyed and rebuilt. During the war, most divisions became triangular - one infantry brigade with three infantry regiments rather than two infantry brigades of two regiments. An artillery commander replaced the artillery brigade headquarters, the cavalry was further reduced, the engineer contingent was increased, and a divisional signals command was created. The 20th Infantry Division's order of battle on March 20, 1918, was as follows:
40. Infanterie-Brigade
*2. Hannoversches Infanterie-Regiment Nr. 77
*Infanterie-Regiment von Voigts-Rhetz Nr. 79
*Braunschweigisches Infanterie-Regiment Nr. 92
*Maschinengewehr-Scharfschützen-Abteilung Nr. 32
5.Eskadron/Braunschweigisches Husaren-Regiment Nr. 17
Artillerie-Kommandeur 20
*Niedersächsisches Feldartillerie-Regiment Nr. 46
*Fußartillerie-Bataillon Nr. 155
Stab Pionier-Bataillon Nr. 10
*2.Kompanie/Hannoversches Pionier-Bataillon Nr. 10
*3.Kompanie/Hannoversches Pionier-Bataillon Nr. 10