They needed extensive fortifications for cover, numerous war machines to combat the endless tides of enemies so that those in the Law Realm could focus on or stall the High Dukes of the enemy.
Otherwise, the High Dukes, sheltered by a tide-like horde of monsters and under the protection of various Legendary Realm beings, could retreat at any moment, thwarting their strategic objectives.
However, following this path meant substantial losses for each Battle Zone.
After all, they were only the defending side and had launched the war somewhat hastily.
"But if we don't do this..." another elder erupted, "By the time Dragon Sleep Valley's schemes come to fruition, by the time the Red Fog Disaster Moon descends, our entire frontline Great War Zone will sink in an instant, and even the heartlands of the Qi Cheng Federation will face catastrophic disaster."
"Can't you see which is more critical!"
"Let's start the vote now!"
"Agree!"
"Agree!"
"I disagree..."
"Agree!"