context: After his basic military service in 1975, he graduated at the Theresian Military Academy.
source: from 1988 to 1991, Commenda was the chief instructor of tactics at the National Defense Academy.
reference_original: ...von 1988 bis 1991 war Commenda der leitende Ausbilder für Taktik an der Nationalen Verteidigungsakademie.
reference_flipped: ...von 1988 bis 1991 war Commenda die leitende Ausbilderin für Taktik an der Nationalen Verteidigungsakademie.