Not to mention that once a Beast Tide erupted, a Forward Base located on land could easily be swallowed by the overwhelming horde. Whether mounting a desperate resistance or finding a way to rescue the personnel trapped inside, the difficulty was extremely high.
Thus, people had long considered the concept of an "Aerial Forward Base."
That was, further upgrading the already mature Armored Airship technology, adopting a modular design, and combining dozens or even hundreds of Armored Airships into a massive Aerial Fortress that could fly directly above the coordinates where humanity wished to establish a Forward Base.
Compared to ground-based Forward Bases, this kind of Aerial Fortress possessed incomparable advantages.
First of all, it had exceptional passability and was barely affected by the ground environment.
Whether deep forests, rugged mountains, fragmented ravines, wetlands crisscrossed with waterways, or even bottomless swamps shrouded in Poisonous Fog—terrain that would require a hundred times the cost to traverse from the ground could be crossed by an Aerial Fortress with ease.
Second, the overwhelming majority of monsters lacked both flight capability and anti-air combat capability. No matter how astonishing a monster's jumping ability was, reaching a height of one hundred meters was its limit.
As long as an Aerial Fortress maintained a cruising altitude above three hundred meters, it could avoid more than 90% of monster threats.
As for threats from aerial monsters, they naturally still existed.
However, even Forward Bases on the ground faced the threat of aerial monsters swooping down from above and launching diving bombardments.
Fighting flying monsters in the air at least pulled both sides to the same altitude, allowing humanity's incomparably ferocious firepower to finish them off.
On the other hand, in humanity's war against monsters—or rather, the Earthlings' war against Another World Natives—humanity's greatest advantage was not actually