In this situation, the strong combatant races that had escaped from danger had become unstable factors.
The human race will undoubtedly target them in the upcoming offensive, and it's highly likely they will suffer significant losses.
If these powerful species are not suppressed, they could potentially become a major threat to their rule after the war.
Even if these species are not powerful, doesn't the Alpha Kingdom, as their neighbor, will lend a hand?
The Human Race is skilled at playing politics, and will undoubtedly seize any opportunity to incite internal discord within the Orc Empire.
...
The woes of the Orcs are great, but Joseph II has even more on his plate. At this point in the war, the royal bloodline's power was reduced to the ten thousand or so people loyal to him.
Such an armed force, in the hands of a Major Noble, could only be considered pitiful.