630. I Couldn't Believe It

East of the Heavenly Que Mountain Battlefield.

The border city of Red Flame Country, Natural Barrier City.

The Aurora Empire had Silent Fortress in the direction closest to Heavenly Que Mountain, and the Xia Kingdom had Black Forest Fortress. Red Flame Country was no exception.

They had not only built Natural Barrier Fortress but also constructed a Natural Barrier City not far from it.

Moreover, unlike the Aurora Empire and Xia Kingdom, Red Flame Country—known as the greatest economic power in the East Divine Continent—had fortified Natural Barrier Fortress until it was impregnable. With money to burn, they had shown the world exactly how complete fortress defenses could become when funding was no object.

The entire Natural Barrier City had been built almost entirely from special steel, and its walls reached a height of sixty meters!

That was a height even Cavemen Warriors would find difficult to cross.

In addition, to perfect the Heavenly Que Mountain defense line, Red Flame Country had dug countless waterways and released vast numbers of piranhas into them. They could create a terrifying barrier against ordinary Cavemen. As long as they could block the Cavemen's numerical advantage, even if a handful of Small Commanders and commander-level Cavemen crossed the defense line, they would inevitably face saturation bombing from Red Flame Country.

Therefore, in terms of solidity, Red Flame Country's Natural Barrier City and Natural Barrier Fortress defense line were absolutely more formidable than the Aurora Empire's Silent Fortress.

The reason the Aurora Empire had chosen to let the Cavemen deal with the Xia Kingdom first was that it understood that even if fifty thousand Cavemen charged into Red Flame Country, they might not be able to destroy this nation with its unfathomably deep foundations.

At that moment, in the Natural Barrier City conference room, the