The wilderness outskirts of the giant city were originally no man's lands where humans dared not tread at will. A multitude of alien tribal powers carved and occupied the wilderness.
Only the messenger squads and caravans from the giant city, as well as groups of scavengers would carefully navigate through the wilderness, afraid of being discovered by the alien tribes. This was also considered the most perilous occupation.
Humans could only live within the giant city; it seemed to have become a habit.
The vast spaces outside the giant city no longer belonged to humanity.
But now!
Above the wilderness, millions of human soldiers were driving out alien legions, their powerful firepower uprooting one fortress and stronghold after another.
This was an unprecedented great military expedition. Nearly eight million soldiers from different giant cities, driven by the obsession to reclaim the world for humanity, launched attacks on all alien tribes!
This was an unprecedented advantage!