Problems within the Empire's Army
( Eren's POV )
Demon Count Vaugn had given Eren a bunch of human texts such as the territorial maps of the Empire and more and asked him to translate them into Demon Tongue for the Demons to understand.
As the days passed, Count Vaugn began releasing the true potential of Eren when Eren started to provide him with key insights about the Empire and its current state by translating scriptures that the demons had captured from human territories over the years but were unable to understand due to the language barrier.
Concepts like the human military structure and the ranks of officers serving within, were previously impossible to understand for the demons, however, with Eren's arrival, everything started to become crystal clear.
The highest military officer within the Empire's forces was called the 'Chief Army General', who currently was a Master Swordsman by profession.