The Tianyuan Mountains are a tough nut to crack.
After several failed westward campaigns against the Ancient Abyss, the Great Yan Army had become quite familiar with forest warfare, even devising a comprehensive strategy, but this was the first time attacking a mountain range completely shrouded in a grand formation.
The massive Central Corps, under the command of Zong Qingsheng, advanced steadily, but every step forward came at the cost of lives.
The fog stirred by the Mountain Protection Array limited the military formation's perception, and countless secret fortresses hidden in potential corners of the primeval forest fiercely resisted the invaders.
During this process, the fog of the formation over the mountains blown apart by Cloud Qi Bombs only to coalesce again, and hill after hill was razed to the ground by the energy binding weapons, leaving no trace of the soldiers of the Sword Sect hidden in the secret fortresses.
Then,
