Outer Realm Battlefield, East Qian Defense Zone.
Compared to a large defense zone like Immortal No. 3 Defense Zone, this stretch of the Outer Realm Battlefield was nothing more than some backwater corner of the countryside.
The forces hostile to the East Qian Defense Zone were mainly the three great Demon King Fortresses: Dragon-Elephant Demon King Fortress, Dragon Kui Demon King Fortress, and Bloodthorn Demon King Fortress.
Of these, Dragon Kui Demon King Fortress and Bloodthorn Demon King Fortress were both located somewhat farther to the rear.
Therefore, East Qian's wars against the Outer Realm fiends were usually fought against Dragon-Elephant Demon King Fortress, while the latter two Demon King Fortresses merely provided support. Even so, Great Qian had found it exceedingly difficult to cope, only managing to stabilize the situation in recent years as its national strength steadily increased.
The three great Demon King Fortresses all served under the Nether Baleful Demon God.
However, this region was merely one small domain within the Nether Baleful Demon God's sphere of influence. Its main forces had always been jointly restrained by the Immortal Dynasty and the Demon Dynasty.
Otherwise, based solely on the strength of nations such as Great Qian, South Qin, and West Jin, they would have long since been swept flat by the Nether Baleful Demon God.
During this period, the Blood Dragon Demon God incarnated by Yun Xiayang had expanded the range of his havoc from the vicinity of Dragon-Elephant Demon King Fortress, ravaging all the way to Dragon Kui Demon King Fortress and Bloodthorn Demon King Fortress. Moreover, the trail of destruction he left behind was gradually advancing toward the heartland of the Nether Baleful Demon God's territory.
For a time, one Demon King Fortress after another was turned upside down. Vast quantities of demon crystals were