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XXXIX Reserve Corps (German Empire)

The XXXIX Reserve Corps () was a corps level command of the German Army in World War I.

Formation

XXXIX Reserve Corps was formed in December 1914. It was part of the second wave of new Corps formed in the early stages of World War I consisting of XXXVIII - XXXXI Reserve Corps of 75th - 82nd Reserve Divisions (plus 8th Bavarian Reserve Division). The personnel was predominantly made up of (wartime volunteers) who did not wait to be called up. It was still in existence at the end of the war.

Structure on formation

On formation in December 1914, XXXIX Reserve Corps consisted of two divisions. but was weaker than an Active Corps

  • the divisions were organised as triangular rather than square divisions with three infantry regiments rather than four, but had a brigade of two field artillery regiments
  • Reserve Infantry Regiments consisted of three battalions but lacked a machine gun company
  • Reserve Cavalry Detachments were much smaller than the Reserve Cavalry Regiments formed on mobilisation
  • Reserve Field Artillery Regiments consisted of two (1 gun and 1 howitzer) of three batteries each, but each battery had just 4 guns (rather than 6 of the Active and the Reserve Regiments formed on mobilisation)

In summary, XXXIX Reserve Corps mobilised with 18 infantry battalions, 2 cavalry detachments, 24 field artillery batteries (96 guns), 2 cyclist companies and 2 pioneer companies.

Combat chronicle

In 1915, the German offensive in Courland was intended to be a diversion while the main effort was made further south by the German 11th Army and Austro-Hungarian 4th Army in the Gorlice–Tarnów Offensive.

Armee-Abteilung Lauenstein (Army Detachment Lauenstein) was formed by upgrading XXXIX Reserve Corps of 10th Army on 22 April 1915. It was named for its commander, Generalleutnant Otto von Lauenstein, who retained simultaneous command of XXXIX Reserve Corps. It was directly under the command of OB East.

Due to its success, it was continuously reinforced until it was raised to the status of an army as the Army of the Niemen on 26 May 1915. Generalleutnant von Lauenstein remained as commander of XXXIX Reserve Corps.

Commanders

XXXIX Reserve Corps had the following commanders during its existence:

Glossary

  • Armee-Abteilung or Army Detachment in the sense of "something detached from an Army". It is not under the command of an Army so is in itself a small Army.
  • Armee-Gruppe or Army Group in the sense of a group within an Army and under its command, generally formed as a temporary measure for a specific task.
  • Heeresgruppe or Army Group in the sense of a number of armies under a single commander.

See also

References

Bibliography