The indigenous powerhouses had all gone to attack the Plane Portal, and the region's ground forces were gathering there.
The once-bustling Barren Mountain Region suddenly grew quiet.
With the relentless attacks finally over, the human soldiers on the city wall defenses could at last get a good night's sleep.
The Skeleton Legion didn't need to rest. Some Combat Skeletons remained at the outermost front line to stand guard against surprise attacks, while the rest returned to the center of the Barren Mountain Region to build districts alongside the Logistics Skeleton Legion.
The Indigenous Allied Forces had shifted their primary target, but that didn't mean the Barren Mountain Region was free of fighting.
The Indigenous Allied Forces were constantly mobilizing fresh troops. Before long, the flames of war would burn again in the Barren Mountain Region.
The natives of the Kazma Plane wouldn't rest until they had completely wiped out this band of invaders from another plane.
The Skeleton Legion needed to use the ceasefire to further strengthen the defenses of the Barren Mountain Region and prepare for the attacks to come.
The city-states had made thorough preparations for this plane-invasion war.
After the Loran City-State opened a Plane Portal, the other seven city-states opened portals at various locations in succession.
Large numbers of fresh troops rushed to reinforce the Plane Battlefield, engaging the natives of the Kazma Plane in a bloody struggle.
A month into the ceasefire, the Indigenous Allied Forces once again amassed a huge army outside the Barren Mountain Region and tentatively launched a full-scale attack.
Over the past month, the Skeleton Engineering Team had further upgraded the defenses of the Barren Mountain Region.
Elemental Ballistas were deployed on a large scale, while the huge Raging Flame Magic Rune Cannons in the High Tower Castle roared to life.