After completing a series of follow-up arrangements, Hetty left Gao Wen's room with the documents. There was only a slight buzzing sound of the ventilation system in the huge study. It was not until an inconsistent breeze blew from behind that Gao Wen turned his head slightly: "You are late again."

"I've arrived just now," Amber's figure emerged from the window, and walked towards the desk and said casually, "But you were talking about things that made people feel big. When I heard it, I felt my head hurt and I rested outside the window..."

Gao Wen glanced at the guy: "How is the matter I asked you to investigate?"

"As you expected, there are spies from Tifeng among the men and craftsmen recruited near the White Sand Hills," Amber's expression became slightly serious. "Their lurking cycle was beyond our imagination. One of the carpenters had even lived in the East for twenty years, and followed the refugees in the East for escape from the desert, blocked the city for the lord, and even joined the army to fight wars. No one could believe that a person who had lived in the local area for twenty years would be a Tifeng man-until my man caught him secretly using the magic to collect information about mine machinery."

"... Maryland mentioned in the report that the Tifeng people are not ignorant of our magic equipment. In addition to basic common sense, their aerial scouts can even remotely identify the flash of magic cannons when they are excited... This is something that must be observed by the video data," Gao Wen said. "Ansu and Tifeng have been confronting each other for decades, and spy infiltration has become the norm. Within half a year when the East Realm lost control, these spies must have taken the opportunity to spread a large amount of intelligence."

"There is nothing to do. After all, it takes time for us to completely take over the East Realm. A short-term chaos is enough for those spies to do a lot of things, not to mention that it has been chaotic for nearly half a year. Then again, our "national power deception tactics" were also completed by these spies. It is not a loss to calculate," Amber curled his lips, "but the spies we have found now must only account for a small part, and there are countless hidden in the corner of the East Realm's gutter, and they may even have entered the Holy Spirit Plain with large-scale out-of-control refugees..."

"This is the time for the MIIS to play its value," Gao Wen looked at Amber. "Unconventional confrontation is the norm between Tifong and Cecil in the future. A large part of the pressure is on your MIIS operators, but I believe their abilities."

"Don't worry, the people I trained will never disappoint you in terms of making trouble and counter-inflicting trouble," Amber raised his lips proudly, then took a step forward, and placed a thick stack of documents in his hand on Gao Wen's desk. "In addition, this is from Changfeng Fortress."

Gao Wen just saw Amber holding something in his hand. He thought it should be a report, but he didn't expect it was just a "one" report from Changfeng Fortress. He was shocked: "So thick?!"

Amber: "I didn't expect that... it was sent by Maryland and Philip, and God knows how much they wrote."

Gao Wen raised his eyebrows when he heard this, lowered his head and turned on the thick print, his eyes swept over the neat letters on it. After a moment, he whispered: "It is a summary of the Paramel incident, as well as suggestions and reports on the advantages and disadvantages of the Frontline Defense and the Magic Legion."

Amber was stunned for a moment and curiously approached the table: "Ah?"

Gao Wen didn't care about Amber's approaching, because as the military intelligence director, she had the authority to check the document. He just lowered his head and read the words and sentences in the report more seriously.

At the beginning of the report, Maryland mentioned the legion-level spells of the Tifeng Empire and the shortcomings of traditional defensive fortresses when facing such opponents.

Based on the information collected during the confrontation with Tifeng in the East, plus the information obtained from Maryland's subsequent investigation, Gao Wen finally understood more clearly what characteristics and power the "League of the Superman" created by Tifeng had, and also learned the full picture of the so-called "legion-level spell" for the first time.

In short, it is a kind of attack that allows mass-produced extraordinary people to cast spells simultaneously, causing large-scale magic resonance, superimposing the limits of the basic spell model, and forming an attack after mutation. In essence, it is still a type of "spray casting technique" and an extension of traditional extraordinary skills. However, in terms of expression, it has completely transcended the framework of the old army, and even... can produce power similar to the Cecil Magic Legion.

Taking the Iron River Knights as an example, the Tifeng Empire trained thousands of extraordinary people from childhood, allowing them to master basic skills such as knight charges, focus on halos, and protective aura. After thousands of training, these skills became the instinct of these extraordinary people breathing. In addition, the rate crystal worn by each knight can further stabilize and "resonate", and the entire knights can create a powerful "resonance domain" during combat - this resonance "domain" is the legion combat skills (sprites) of the Iron River Knights.

In the resonance domain, magic power covers the entire Knights and can generate a huge unstable energy field called "thermal vertebrae" on the attack path. From the description, Gao Wen believes that it may be an extremely terrifying sea of ​​plasma - the Iron River Knights can directly hit this high-energy plasma on the shield of the fortress. If it is a smaller fortress, the entire shield will be overloaded and extinguished in just a moment.

Similarly, the magicians of the Tifeng people can release similar spells - and as specialized spell casting units, their attack methods will be more diverse. When the two armies are facing each other, they can carry out large coverage bombings, and when attacking the fortress, they can also jointly create huge thunderstorms or focused energy like rainbow cannons.

In front of such a legion of extraordinary people, the traditional, closed defense fortress appears particularly fragile.

The earliest experimental extraordinary legion of the Tifeng people was formed several years ago. At that time, Duke Silas Loren, who guarded the Changfeng Fortress, was not perfect enough for the resonance technology and legion training of the Tifeng people at that time, exposed their combat intentions during the energy storage stage. The Duke Silas made a quick decision and relied on more than a dozen knights to charge in a certain wave of times. In addition, a large number of magicians continued to carry out long-range magic countermeasures, which interrupted the Tifeng people's actions. The combat record of that time is still preserved in the archives room of the Changfeng Fortress.

Just as two rainbow light cannons in the past broke through the shield of the Rock Fortress, the Tifeng Superman Legion of the same era is also shaking the status of the traditional fortress.

On Earth, classical castles left the scene in this situation.

However, in this world, due to the existence of shield technology and magic net technology, fortresses that can accommodate massive infrastructure are not so easy to exit the battlefield - after all, when facing forces other than "super weapons", fortresses with shields and self-sustaining abilities are still indispensable when facing natural disasters like the Magic Tide. On the other hand, as long as shield technology develops again, even in the face of extraordinary legions or magic heavy artillery, traditional fortresses can still return to an important position.

Under this premise, Maryland proposed to Gao Wen in the report his defense reform plan for Changfeng defense line-

The first step is to retain a series of positions built during the "deception war" before, and with the construction of subsequent roads, the material and military gaps are filled, and it is perfected into a continuous military station stronghold. Set up sufficient long-range firepower at each stronghold to form a main defense line with the Changfeng Fortress through a cross-fire network. At the same time, each military station also has the functions of alert, supply, and maintaining backup communication lines to ensure that the defense line is smooth, sensitive to the response and strong survivability.

The second step is to ensure that several troops can move at any time with the advantage of unobstructed roads between the soldiers and stations. This is to prevent the Tyfeng Knights from finding loopholes in the defense line and bypass fixed fortifications to harass the rear. Previously, Changfeng Fortress also had similar patrol cavalry teams to deal with the "detour" of the Tyfeng people, but due to the lack of military stations, its role is very limited and can only deal with the Tyfeng army in the past. However, now Tyfeng has been developing, and its extraordinary legion has reached a scale. More importantly, they have mastered the technology of magic vehicles, and their military mobility may make breakthroughs at any time. It is essential to make early defenses at the border.

And in the third step, Maryland's suggestion surprised Gao Wen-

The former commander of the Panshi proposed to establish a "rail defense belt".

"...We can build several railways in the north and south direction with Changfeng Fortress as the core, connecting all troop stations and border stations, and allow multiple armed trains to operate on the tracks to ensure that there is mobile firepower at any time to support any point on the border... The Extraordinary Legion of the Tifeng people poses a huge threat to the fixed fortress, but the effect of armed trains in mobile states will be greatly reduced...

"Considering that the Iron Throne is expensive and it is not realistic to set up a series of Iron Throne on a border, we can build simpler armed trains - we can use mine-type vehicles to reduce the number of arsenal sections and transport sections, and cancel fortress-level heavy artillery. The weapons are mainly arcane missile towers and small fragmented howitzers, because the army of the Tifeng people is still mainly composed of ‘people’, and simple armed trains are enough to cause damage to people...

"The charging track itself is the carrier of the magic net. In the process of building the track, it is equivalent to completing the magic net laying on the border. Since the track itself has a shield, this can further ensure the safety of defense line communication..."

Gao Wen slowly put down the report in his hand and sighed softly: "...We have picked up treasures in the Rock Fortress."

Amber didn't know much about war, but at least after being influenced by Gao Wen for a few years, she could understand what was mentioned in the report. After deducing it in her mind, the military intelligence director's eyes slowly opened: "Oh my God... Is this set of things really built, and the Tsufeng people use their heads to attack the defense line... Is this the so-called 'ultimate defense line'?"

"There is no ultimate tactic in the world. The skills of war always continue to develop in offense and defense. The Tifeng people may one day find a way to fight against the mobile defense network, but more advanced defense concepts will always appear," Gao Wen shook his head and returned to the report. "But at least at this stage, in the face of the existing enemy... Maryland has thought of the most appropriate solution."

Maryland's plan has almost reached the limit that Cecil's engineering capabilities and technical strength can achieve at present. The traditional Changfeng Fortress is still an important structure of the defense line, but it has changed from the only core to an important node, and it has more of the role of a command center, a logistics center, and a front-line industrial center. The mobile defense network established under modern transportation and communication conditions can further amplify the advantages of the Magic Legion to make up for the current shortcomings of the still insufficient number of Cecil's border troops.

What is even more commendable is that Maryland also considered cost savings in the process - he noticed the problem of excessive firepower when facing infantry units, and the simplified version of the armed train he proposed would greatly reduce the financial pressure of the Cecil Empire.

After all, reconstruction, renovation and construction are all cost money. If Gao Wen wants to start construction of seven or eight Iron Thrones, Hedy will probably jump directly from the bank of the Baishui River...

Of course, even with this optimization, the maneuver defense plan proposed by Maryland still requires high costs to achieve, but Gao Wen is very clear about one thing: anything can be saved, but education and national defense cannot be saved.

The former determines what height a country can reach in a hundred years, and the latter determines whether a country can survive a hundred years.

Gao Wen turned a page - this thick report, and more.

Later, he saw Philip's complete report on the horror of the night in the Paramel Heights, and a few pages of lessons learned.

“… Due to lack of experience, our army failed to fully play the role of the Iron Throne. The successful evacuation of the Tifeng troops itself could be avoided, but we missed the opportunity.

"There are problems in coordination between armored trains and fixed land positions, and the Changfeng Defense Line has problems in intelligence sharing, so that the intelligence of several observation posts in the Paramel Heights could not be sent to the Iron Throne in time. Although the above observation posts did not find the whereabouts of the Tifeng troops, the situation of poor intelligence did exist.

"Our army has insufficient reconnaissance methods in bad weather conditions - the Tifeng people were able to discover the Iron Throne, but several observers on our side did not find the reconnaissance of the Tifeng people. Traditional griffon knights are almost unable to take off in bad weather. Hawkeye, telescope and other means are greatly affected by the weather conditions...

“…It is recommended to develop an observation device that detects the effects of life. It is recommended to add functions similar to the ‘magic monitoring tower’ to the Iron Throne, and to sense extraordinary units or traps hidden nearby in a timely manner.
Chapter completed!