To prepare for the crisis ahead, the Mine Base had spent days on edge, making preparations. In less than a week, they had frantically raised their forces to nearly a hundred thousand. They had also stockpiled all kinds of missiles for fusion strikes, timed nuclear devices, and nuclear shells, ready to launch tactical nuclear attacks around the base if necessary and completely halt the demons' advance. But who could have guessed that, for some unknown reason, the demons in Guixu City would remain completely inactive?
At the sight of this!
Sensing that something was off, the Mine Base had wondered whether its assessment had been wrong. While it continued recruiting and training new soldiers at full speed and producing all kinds of weapons and equipment, it also ordered the troops at the several strongholds left behind in the city during the retreat to remain on high alert and conduct frequent sorties to scout the situation. At the same time, it dispatched large numbers of high-altitude, low-altitude, and even ground reconnaissance drones into the city. Together with the spy satellites in synchronous orbit, they began a meticulous surveillance operation, observing and assessing the demons' activity in the city and around the base.
However...
The Mine Base hadn't expected what happened next. As they stood ready for battle, their enemies on the ground—the demons entrenched in Guixu City—had clearly grown restless, yet for some reason still held back and made no response to the humans' earlier retreat. Then, to everyone's surprise, something unexpected happened.
The demons hadn't launched an attack on the ground. Instead, they had made their first move in space.
In any case, when Darius, the base commander, was notified and hurried into the command center with a grave expression, he saw the largest holographic screen there showing a shocking