After traveling a little farther, they entered the mountains. The mountains on both sides were clearly uninhabited. This area already belonged to a military zone; outsiders simply did not know it.
Once the provincial highway entered the mountains, Jiang Yan Hai observed the surrounding terrain. It was indeed well suited for concealment. When large satellite receivers appeared atop the mountain ahead, he knew they had reached the base.
Yet nothing unusual could be seen around them. The surrounding mountaintops were visibly equipped with devices resembling large Satellite Receiving Devices, like scientific research equipment. Those devices also served an electromagnetic interference function.
When the time came, even space-based Synthetic Aperture Radar would not be able to capture anything here.
The road had become much wider. When a tunnel appeared ahead, Jiang Yan Hai noticed that it had no name, only a number: Tunnel No. 17.
The vehicles entered Tunnel No. 17 and drove roughly five hundred meters inside. Jiang Yan Hai then noticed a large electric door on their right, resembling the rolling shutters found in cities.
The door was wide enough for trucks to drive through. But if ordinary vehicles passed by, people would at most assume it was some kind of emergency access route and would not think much of it.
When their convoy arrived, the rolling door slowly began to rise amid a series of warning beeps.
Once it opened, Jiang Yan Hai realized that although it looked like a rolling shutter from the outside, it was actually a thick steel gate. There were also two more doors inside, and the innermost one was clearly open. It was the kind that closed from the side.
After they entered, the interior was brightly lit. The vehicles moved quickly through the long passageway. When they reached the end, the entire