There were enemies on the conventional understanding of intelligence, and deterrence was indeed an effective method.
Human Civilization didn't even need to be truly invincible, just needed to make the enemies realize that invading this civilization would cost much more than what they could plunder, and that high probability could keep the threat at bay.
In such situations, a series of critical orders were issued.
All fields, all departments, fully engaged!
Leave none!
Especially the urban systemic defense departments, which were operated to the utmost, had opened the city defense structure created over nearly forty years since the trial began!
Merely visible to the naked eye, the vast extraordinary power prepared in each city began operating rapidly.
Everywhere, formations and magic techniques were recreated!
