But the problem is that the soil and rock covering the water source are extremely fragile. If any thermal weapons are used, they might be exposed. However, without using thermal weapons, how could a person with just two hands resist the overwhelming swarm of flying insects?
And if the flying insects cannot be eliminated all at once, any that manage to escape would remain a significant problem.
These insects have large heads and small bodies, with nothing but a mouth occupying their entire being. They are severely polluted and cannot be consumed.
As for natural predators... nowadays, apart from the animals being protected within the underground bases, the outside world is a barren wasteland, not even a cricket can be found.
There's some life in the rivers and seas.
But they can't be consumed either. According to experts, with the self-purification function of rivers, seas, and aided by high-tech unfettered investment, it would still take about 20 years to recover.
