Nope they haven't if you look at the map near the end of the chapter you would see the demon king territory covering half the continent. With the other half split between, presumingly, multiple human nations with the active front lines of battle between some of the humans and demons on the border of the demon king territory.This is a universe where people lost to humans right? I swear I remember that being a plot point earlier. I'm really confused how humans became a dominant group outside the forest when they can't even use spears right.
Thanks for the chapter
From the looks of things the demon king kindoms still has plenty of leeway with how relaxed the demon king and his advisors are despite being at war