Erwin
Rommel as an Oberstleutnant, in the period between March 1935 to July
1937. At that time he served as "Lehrgruppenkommandeur der Lehrgruppe A
an der Kriegsschule Potsdam".
Source :
https://www.leo-bw.de/detail/-/Detail/details/PERSON/kgl_biographien/118602446/Rommel+Erwin+Eugen+Johannes
