Numerous small Bimon tribes were wiped out by the surprise invasion of the "Mercenary Corps" stumbles into their territories.
This slaughtering enraged the Orc Empire. However, lacking in strength, they could not stop the Allied Forces.
They couldn't even fortify their locations by concentrating their forces: the total population of the five royal clans, reaching tens of millions, would exhaust them simply through logistics if they attempted to join forces.
Stationing their forces sporadically, banking on the advantageous terrain for defense, was a reluctant necessity.
Unfortunately, their opponents were absurdly difficult: either the formidable Allied Human Army or the unpredictable mercenaries.
When conditions weren't ideal, they created them: polluting water sources, setting forest fires were their routine measures. Various nefarious Gods also emerged in this chaos to stir things up.
