Oberkommando des Heeres
No longer able to serve directly in combat, at the age of 21 years, Senger und Etterlin was transferred to the "Oberkommando des Heeres" (OKH) or Army High Command and was assigned to be the personal adjutant of General der Panzertruppe Leo Geyr von Schweppenburg. While serving in this capacity, he was captured by American forces at the end of the war.