Two hours later, Jiang Yanhai had already appeared at Base 9, followed by Jiang Yanhai was a Phantom fighter jet, just on the Phantom, the Phantom's powerful electronic system had received the information transmitted from the ground.

In fact, Jiang Yanhai looked at Erdan in his mind, the base is a bit similar to the Yushi base, the difference is that it is located inside the Qilian Mountains, and it is also entered by a tunnel, but the difference is that its road is in a state of blockade.

Ordinary people's vehicles can't walk this road, because it's not connected to the outside world, and the only town it connects to is actually the family village of the research base.

In the northwest, such a small town has a small number of people, and the area is not large, and it is located in a remote corner, and there are no people from the outside world at all.

Even the locals don't know this information, they just think it's a small town.

The other side of this tunnel was actually blown up by man-made bombing, but in the eyes of outsiders, they just thought that the entire tunnel had collapsed directly, and it was impossible to enter from the other side, and the road on the other side was also in an abandoned state.

In fact, this is the entire secret research base, the research base covers a large area, and its tunnels are also very wide, with a total width of 22 meters, which can theoretically be entered by any fighter, but the reason why this tunnel is so wide is not for fighters to enter.

However, sometimes it is necessary to transport some special experimental equipment, and many of the equipment are relatively large, so its tunnel will be built in such a large area at the beginning of construction.

The base enters the interior, hollows out the entire mountainside, adopts nuclear protection engineering, its total depth is 150 meters, and it is built using a natural cave that originally existed inside, its lowest area is the largest, and the entire karst cave has undergone nuclear protection reinforcement.

There are only two entrances to the front, and a separate passage connects to the other end of the inner cavern, but that place has been artificially sealed and is not open to the public except in an emergency.

As for the other ventilation devices, they have various protective measures, and if they enter the first-level lock state, even this ventilation device cannot enter.

Jiang Yanhai had already seen the drawings of the entire base, but now the point was that they didn't know what was going on yet.

Jiang Yanhai entered the command hall, and Fan Tianlei and the others were all here.

"Is there an order passed down from above?" Jiang Yanhai immediately asked.

"Under your full command, the current base blockade time is 2 hours and 42 minutes, according to the information transmitted from above, after the entire research is completely sealed, its internal air circulation system will be automatically activated, but this can be turned off by the people who blockade the base."

"If the circulation system is activated, the internal air circulation system can allow all the people inside to use it for 24 hours, but if it is not activated, then the internal air circulation can only allow the people inside to survive for 6 hours." Qiao Fangyuan immediately introduced.

"What about the base's security guards?" Jiang Yanhai frowned.

"In order to maximize the concealment of the base, it does not have many personnel, but there are garrisons around the base, after all, more personnel need more material reserves, it currently has a total of 72 researchers, 12 logistics personnel are blocked inside the base. The base has a total of 232 security and logistics personnel, and the remaining 220 have all been evacuated. ”

"The blockade starts with the most central laboratory area, which is not allowed to be entered by security personnel, and these 12 logistics personnel are the only ones who can enter."

"What about electronic systems?" Jiang Yanhai frowned.

"All disconnected, judging by the current form...... It's like an electromagnetic pulse bomb, all the internal instruments are destroyed, and all connections to the outside world are lost. ”

"The power is also cut off?" Jiang Yanhai took a deep breath.

"It is not possible to determine the internal power supply system at this time, but the external power supply room has burned down, and according to the description of the employees of the external power supply room, the power consumption suddenly reached a peak before the power was interrupted, and then it burned down instantly." Qiao Fangyuan quickly introduced the situation.

Jiang Yanhai's brows furrowed tightly, if there are too many high-power electrical appliances used in the internal power supply of the family, the circuit may trip, but how much power the circuit that supplies the secret base can hold, you will know if you think about it.

So it is impossible to have a power outage because of internal research, there is only one reason, there is an unknown energy burst inside, such as an electromagnetic pulse.

"This base...... Research what? Jiang Yanhai thought for a while and asked.

"The chief said, if you ask, tell you that you have come back from Africa." Qiao Fangyuan didn't know about them, but he still gave a word.

Hearing this, Jiang Yanhai nodded, he guessed that it was.

More than a year ago, the mysterious cargo from "Who Am I" in Africa that landed at the Decepticon base is not known where it was delivered, but it is estimated that it was delivered here.

"Can you be sure if someone is attacking?" Jiang Yanhai took a deep breath and asked.

"It is impossible to know for sure, according to the security personnel, the base is tightly guarded, and it is theoretically unlikely that someone will sneak into the base from the outside and they will not be able to find out, especially if they sneak directly into the most core area."

"However, this theory is not absolute, the base is connected to an underground river, where the groundwater is the source of the base's drinking water source, and the underground river can indeed reach several secret exits nearby."

"The problem is that the underground underground river passage is complicated, and even our current unmanned underwater detector has not fully detected it, and the personnel dare not go completely deep, unless someone has a complete grasp of the flow of the dark river, otherwise, it is unlikely to sneak into the base."

"And even if you enter through the dark river, it's not so easy to evade the security personnel. This is the only vulnerability that can happen. Qiao Fangyuan shook his head.

"The point now is that the sensors that are placed in these areas have been completely damaged and we can't connect to get the data." Black Hawk, who maintained an internet connection with them, said helplessly.

"Got it, are all the guys back now?" Jiang Yanhai immediately asked.

"All the main members of the special operations group are here."

"Yang Rui, Xu Hong, Gu Shun, Li Ming, Zhang Tiande, Tong Li, Zhuang Yu, Lu Yan, Chen Shanming, He Chenguang, Li Erniu, Wang Yanbing, Song Kaifei, Xu Tianlong plus me, a total of 16 people, I personally led the team." Jiang Yanhai said decisively.

"Yes!"

"Order, two Phantoms and two J20s of the air combat detachment took off, one large early warning aircraft, one electronic warfare aircraft and two unmanned reconnaissance aircraft entered the battlefield, and ordered the Ninth Rapid Reaction Brigade to transport the special operations regiment at a distance of 2 kilometers from the base and wait for orders at any time."

"The artillery regiment moved into an attack posture and issued a request to its superiors to bring the original guard units near the base into a state of first-class combat readiness."

"Yes!"