The human race, in their campaign against the Demon Race, adopted a steady and methodical plan. They uprooted every demon tribe in each territory, and even if a demon tribe surrendered, the humans chose to relocate and confine them rather than allowing them to remain and continue to take root.
In this process, all demons that dared to resist or obstruct were exterminated and eradicated by the human race's powerful cultivators and armies, leaving no potential problems for the future.
Of course, the demon tribes that dared to resist were not weak. Relying on their carefully managed stronghold domains, the power brought about by the myriad arrays was astonishing, causing significant losses to the human race—losses that were almost on par with those sustained on the main battlefield.