At the outbreak of World War II Jauer served as a staff officer and regimental commander. In April 1943 he was appointed commander the 20th Motorized Infantry and 20th Panzer Grenadier Division and took part in the Battle of the Kamenets-Podolsky pocket. He then led the 25th Panzer Division at the Battle of Kiev. On 12 March 1945 he took command of the 'Panzer Corps Großdeutschland' with which he surrendered.

Awards

Iron Cross (1914) 2nd Class and 1st Class
Wound Badge (1914) in Black
Honour Cross of the World War 1914/1918
Clasp to the Iron Cross (1939) 2nd Class (2 July 1941) and 1st Class (20 July 1941)Thomas 1997, p. 326.
German Cross in Gold on 19 December 1941 as Oberst in Artillerie-Regiment 29Patzwall & Scherzer 2001, p. 209.
Knight's Cross of the Iron Cross with Oak Leaves
Knight's Cross on 4 May 1944 as Generalleutnant and commander of 20. Panzergrenadier-DivisionScherzer 2007, p. 419.
Oak Leaves on 10 February 1945 as Generalleutnant and commander of 20. Panzergrenadier-Division

References

=Citations=

=Bibliography=

{{Cite book

|last1=Patzwall

|first1=Klaus D.

|last2=Scherzer

|first2=Veit

|year=2001

|title=Das Deutsche Kreuz 1941 – 1945 Geschichte und Inhaber Band II

|trans-title=The German Cross 1941 – 1945 History and Recipients Volume 2

|language=German

|location=Norderstedt, Germany

|publisher=Verlag Klaus D. Patzwall

|isbn=978-3-931533-45-8

}}

{{Cite book

|last=Scherzer

|first=Veit

|year=2007

|title=Die Ritterkreuzträger 1939–1945 Die Inhaber des Ritterkreuzes des Eisernen Kreuzes 1939 von Heer, Luftwaffe, Kriegsmarine, Waffen-SS, Volkssturm sowie mit Deutschland verbündeter Streitkräfte nach den Unterlagen des Bundesarchives

|trans-title=The Knight's Cross Bearers 1939–1945 The Holders of the Knight's Cross of the Iron Cross 1939 by Army, Air Force, Navy, Waffen-SS, Volkssturm and Allied Forces with Germany According to the Documents of the Federal Archives

|language=German

|location=Jena, Germany

|publisher=Scherzers Militaer-Verlag

|isbn=978-3-938845-17-2

}}