St. Kaiser Island is still as beautiful as before, Lin Rui and the others returned to the island to report the results of this mission to Long Noon.

Long nodded at noon, "Good job, employers appreciate your efficiency." In addition, I paid attention to some other information, which was about Zhao Jianfei. ”

"Yes. Lin Rui nodded, "He has joined the Secret Society, I don't know if he found the Secret Society, or if the Secret Society found him." Anyway, he admitted it to me himself, and the hatred with the silver wolf. ”

"Silver Wolf called me yesterday. Long Xiaowu sighed and said. "But it's okay, no other problems. I'll put this matter aside for now. I need you to do another mission. Fang Xin's mission this time was relatively easy. Closer to the nature of the exercise. ”

"Drill?" Lin Rui frowned.

"In addition to providing military services, our company also provides evaluation and testing services, which were originally in charge of Zhao Jianfei, and you may not know very well. "Long Noon Road.

"What kind of assessment?" Lin Rui frowned, "I thought that this would require professional evaluators, not operational personnel like us." ”

"It's not what you think. Our mission this time is to conduct a security and defense assessment, mainly aimed at the US military's secret units, and to discover various problems in their security and defense. You know that an organization like them has a very tight security plan, and a team of professionals is responsible for security vigilance. But it also has to go through various trials and assessments.

The security assessment we do is a simulated intrusion, using our own way to conduct intrusive operations to assess their defensive and reactive capabilities. In addition, a detailed report will be provided after the fact, pointing out the security and defense vulnerabilities of the other party. Long Noon explained.

"This ...... Like a job like a security consultant?" Lin Rui frowned.

"Yes, full strategy and action assessment consultants. Long Noon nodded, "For two months, we will find out the security loopholes of a secret base within two months, and make a practical assessment of their security work." We and their evaluators will assess all your actions and those of the security forces in real time and use them to identify security issues. ”

"See, it's that we're hired to trespass. By analyzing our successful intrusions, they adjust existing defenses to provide targeted defenses. It's easy. Lin Rui nodded.

"Don't talk too soon. Long Noon shook his head and said, "Because the place you are going to invade this time is not an ordinary place. ”

"Isn't it a U.S. military base? It's not that we haven't seen it, the Navy Air Force or the Army Base?" Lin Rui smiled.

"You kid just don't know that the sky is high and the earth is thick, and the target this time is the North American Air Defense Command. Long looked at Lin Rui at noon and said.

"NORAD, that's not going to be in a room in the Pentagon, is it? Lin Rui shook his head with a smile.

Long Zhengwu turned around with a smile, "I know that your kid has no knowledge, come and look at the information." He turned around and turned on the projector, and said slowly, "It's a building, yes, but it's completely different from what you said." Tucked away in a cave in Cheyenne Mountain, Colorado, USA, is one of the world's largest and most modern buildings. It is the North American Air Defense Command and the U.S. Space Command's Cheyenne Hill Underground Monitoring Center. Long Noon switched the screen.

"This is an underground facility?" Lin Rui frowned.

"That's right, this center is located 500 meters under the rock. However, it is a multifunctional command and monitoring center that can monitor more than 8,000 man-made objects orbiting the Earth in space thousands of kilometers away, including about 500 working spacecraft and more than 7,000 space debris. Long Noon said slowly.

On August 21 and October 4, 1957, the Soviet Union successfully launched the world's first intercontinental ballistic missile and the world's first artificial earth satellite. The US government and public were shocked. President Dwight D. Eisenhower hastily ordered an acceleration of the pace of development of ICBMs and space technology, while at the same time calling for the strengthening of air defense and the addition and addition of surveillance and vigilance capabilities for ICBMs.

In order to effectively monitor and guard against possible attacks by ballistic missiles and long-range bombers from the Soviet Union, the United States and Canada, two North American countries, signed an agreement on May 12, 1958, establishing the North American Air Defense Command, a joint air defense agency. At a minimum, this command needs to establish an early warning and monitoring network and a data processing and monitoring center.

The early warning surveillance network consists of early warning radars distributed over the territory of the US state of Alaska and Canada, closely monitoring Soviet ballistic missiles and aircraft that may have come from the north. The data processing and monitoring center is required to be located in a place where the mountain is hidden, easy to defend and difficult to destroy. At the same time, it is necessary to consider that the monitoring center, which is a critical sector, must be kept away from other strategic targets such as military bases and industrial centers, and in particular, it must be considered to be able to withstand the attack of Soviet nuclear weapons.

In accordance with these requirements, the US Department of Defense organized experts to conduct investigations, investigations, and demonstrations, and finally decided to set up a new monitoring center in the mountains of Cheyenne Mountain. Located on the southwestern outskirts of Colorado Springs, Cheyenne Mountain is not too high, although it is meters above sea level, it is not more than meters above sea level. The mountain is made entirely of hard granite, which forms a strong natural barrier.

In May 1961, the underground monitoring center broke ground. First, a main tunnel with a length of 0.5 kilometers and a width of about 15 meters is dug from the halfway point of Cheyenne Mountain. Then, deep in the mountain at the end of the tunnel, a huge artificial cave with a bottom area of about 20,000 square meters and a height of about 25 meters was excavated, and several auxiliary tunnels were opened up to the outside of the mountain. The excavation alone took two years and unearthed about 600,000 to 700,000 cubic meters of rock.

Beginning in June 1963, the United States built 15 buildings in the Great Cave. The structure of the building, including walls, floors, ceilings, corridors and staircases, is made of 20-30 mm steel sheets. The bottom of each building is supported by nearly 100 large springs to resist strong vibrations in the event of a natural earthquake or a nuclear attack.

The roof of the building and all sides are surrounded by rocks hundreds of meters thick, forming impregnable bunkers. The tunnel leading to the outside of the cave is equipped with two gates made of reinforced concrete up to 2 meters thick. When closed, the cave is isolated from the outside world, and in the event of a nuclear attack, it is enough to block the intrusion of shock waves, thermal air currents and nuclear radiation, and ensure that the building is unharmed. ”

"I'll go, that's a big deal. Lin Rui smiled bitterly.

Long Xiaowu smiled and said, "It's really a big deal, but during the Cold War, there were even crazier behaviors than this." Moreover, in the face of the maturity of precision strike weapons carrying high-yield nuclear warheads in the 21st century, Americans are not without worries, and this underground structure surrounded by rock is not impregnable. In particular, they are worried that if someone wants to sneak in, they have been worried that there will be safety risks in the safest place in the world. ”

"So you asked us for a defense assessment?" Lin Rui sighed and said, "I thought it was a beauty difference, but it turned out to be a hard bone." ”