Not too long ago, a demon general had encountered the attacks of three Demon Overlords when he was rushing to reinforce the mechanical base.
It had suffered quite a few injuries before it managed to escape back to the Devil Front.
After that, it would be even harder for the mechanical army that was further away from the devils 'front line to receive protection.
However, the development of the mechanical army required resources, and they had to dig out resources at all times.
This also meant that they could not just guard the areas near the Devil Front.
The demons didn't really care about the small mechanical base.
However, the problem now was that once the mechanical base developed to a certain scale, it would attract the attention of the Demon Lord and attract the Demon Lord's precise attacks. Moreover, it would be very difficult for them to survive.
It was rebuilt and destroyed again and again.