Demon Emperor Second Crown Prince Zhui Ri was no fool. Naturally, he had learned from Demon Emperor Seventh Crown Prince Cong Yun's previous failure.
This time, not only had he marched with exceptional caution, but he had also kept a mobile force composed primarily of Winged Demons, ready to maneuver swiftly in all directions.
Thus, Ye Zhen did not take any risks this time.
Risky stratagems and surprise attacks were mostly tactics used when one lacked sufficient troops.
At present, the forces Ye Zhen could command at Blood River Fortress had already approached eight hundred thousand.
Against a million Devil Race elites, that was more than enough for defending a city.
So what Ye Zhen did now was tightly seal off all information.
War was fought first on logistics, second on intelligence.
And now, Ye Zhen was playing the intelligence game.
The great defensive line between humans and devils on the Human-Demon Battlefield had existed for a very long time.
Thus, it had always been rather difficult for both sides to gather intelligence on the other. Yet after so many years of arrangements, both sides still possessed a certain ability to probe the other's military situation.
However, in wartime, the difficulty of gathering intelligence increased severalfold.
During the days when Demon Emperor Second Crown Prince Zhui Ri's army was closing in, Ye Zhen had issued an almost brutal intelligence lockdown order.
Without a military order, not a single talisman signal was permitted to rise into the sky.
If one was discovered, they were to be pursued to the bitter end. No matter the reason, anyone who sent a talisman signal without authorization would be executed immediately.
If a talisman signal was discovered rising into the air but the responsible party could not be found, then any squad stationed where the