At dawn that day, Lin Guyuan received a message.
The Reversed Water Domain Field northeast of the Supply Zone had suddenly expanded, swallowing the Spiritual Fields near the base station tower.
Even though he had anticipated it, he could not help feeling surprised when he learned the news.
The Upstream Race had finally bared its fangs.
Yet from the broader perspective of racial interests, he could completely understand what the Upstream Race was thinking.
The Upstream Race had been connected with humanity for over a decade. Knowing they were no match for humans, they had always been sending signals of goodwill.
But the Upstream Race surely understood one thing: once humanity finished dealing with the Domain Fields that were their primary targets, they would inevitably turn their guns on the Upstream Race.
No one had pierced that veil only because the time was not yet ripe.
Now that humanity had withdrawn its front lines and was struggling under the Thunder Race's suppression, this was undoubtedly the best time for the Upstream Race to develop.
By taking this opportunity to swallow humanity's resource sites, they were betting that humanity would not dare open another front.
If humanity truly chose to do so, they would undoubtedly be fighting both the Thunder Race and the Upstream Race at once, and the pressure on the battlefield would skyrocket.
But Lin Guyuan believed that the northeastern front would inevitably be opened.
It was not because of the lost Spiritual Fields, much less for so-called pride. In racial warfare, pride was the cheapest thing of all.
Humanity was concerned about only one issue: after taking the Spiritual Fields, would the Upstream Race continue expanding and swallowing humanity's resource sites?
If the Upstream Race truly chose to do that, humanity would inevitably continue transferring combat forces from