It took Zhang Xuesong nearly half an hour to clarify the master plan of the Space Management Bureau, and temporarily subdivided it into four development stages, each of which is a separate project, and also lays the foundation for the later phases, so as to realize the large activity space that the locals need to cope with the war.

Each phase of the expansion is aimed at the ground, at low altitudes, within the entire atmosphere and in outer space, and the projects developed are dual-use facilities that allow people to gradually adapt to life in the air.

The ground stage is mainly the development of individual defense equipment and various materials, in which the defense equipment is not only used for soldiers to defend against attacks, but will meet the needs of the people, and it is not appropriate to call this kind of defense equipment with body armor.

Not only are flying shrapnel and explosions a deadly threat in warfare, but there are also more terrifying biological and chemical attacks, some deliberate and by-products of certain weapons of mass destruction, which in either case can imbue the surface and the heights with invisible dangers.

In this case, people must have reliable defense equipment to avoid biochemical threats in the exposed environment, so Zhang Xuesong named this defense equipment as biological armor.

The comprehensive development of materials is for the manufacture of biological armor, and also for the use of new aircraft in the future, and before the second stage is carried out, the materials will be tested for compliance with combat vehicles and anti-vehicle vehicles.

The main thing is to test the defensive ability and weight and other properties of the material, this kind of material is not a luxury to use on the tank, after all, it is also used to build the Sky Fortress, so the cost of the material can not be lower than those armored steel, it cannot be too high, otherwise how can the materials that even the tank can't afford to use cope with the more consuming material needs of the Sky Fortress.

Anti-vehicle is also the focus of the first phase of research and development, as the name suggests, the vehicle used for defense, that is, it can be used as a mobile security base in war, is used as a civilian use.

When the war is raging, there may not be a completely safe fixed defense base, and even if the Sky Fortress is built at that time, it does not mean that the ground is completely abandoned, and escaping to the sky is the last choice and the best option.

There will still be some people on the ground, and the threat will be reduced due to the reduced population density, and there is also a lot of room for survival to be defended by the anti-vehicle defense, and it is still possible to ensure a normal life by moving the family to the anti-vehicle.

The second stage is the development of combat vehicles, using materials developed in the previous stage.

Replacing existing combat aircraft with that material can also achieve a significant increase in performance, but this is not the development of a new aircraft.

Zhang Xuesong has long considered the development direction of new aircraft, no longer using aerodynamics, or will be used as an auxiliary.

The new aircraft needs to change the power mode, focusing on the space substance, cutting the space to allow the aircraft to obtain more flexible maneuvering, including the ability to hover in the air and drive larger flying objects, which takes into account the needs of the sky fortress.

The Sky Fortress for the people to live cannot be in motion all the time, and it will be equivalent to carrying the people living above it to do strenuous exercise under the effect of gravity, so that people cannot get rest.

Before the transition to the third stage, the development of medium-sized aircraft will be carried out, such as aircraft carriers that serve as bases for conventional combat vehicles, and carriers that can truly sail in the air.

In order to distinguish between the two, Zhang Xuesong named the latter the Helicarrier, which not only has the ability to dock individual combat aircraft, but also has the ability to attack.

Such a helicarrier can be used as a large combat aircraft, but also can simulate the living environment of the sky fortress on it, and the soldiers will first experience life in the sky, and it is easier to find the problems and shortcomings that may be encountered in the air life, and accumulate experience for the construction of the sky fortress.

In the third stage, the official construction of the Sky Fortress will be carried out, and it is expected that the number of fortresses that can accommodate two-thirds of the local people will be built in batches.

During the construction process, a small part of the fortress will be activated to rise into the air, which will serve as a playground for the people, so that the people can gradually adapt to life in the air.

The remaining one-third of the population is not planned to be placed on the Sky Fortress, and the plan is to allow those people to temporarily live on the ground with reinforced defense vehicles and combat vehicles.

The militaries of various countries will also leave some people on the ground to defend the war fortresses, and use guerrilla methods to fight against the enemy, and be responsible for the defense of the people on the ground.

Some of those who remain on the ground will also be transferred to the sea, and a sea city similar to the Sky Fortress will be built in a sea area larger than the land area, which will consume less energy than the Sky Fortress and have stronger defense capabilities.

The role of maritime cities is to share the pressure of the people left behind on the ground to the intensive fighting, and it also has a mobile function, and it is also a strategic platform for armed counterattack against the enemy.

At this point, the Space Administration has basically completed its large-scale space deployment to deal with war, using three platforms on land, sea, and air to provide its own side with a broad space for activities, reduce the possibility of being hit by the enemy, cooperate with each other to contain the enemy's firepower, and then launch an attack on the enemy with combat aircraft with excellent performance.

The biological armor plays a basic role in life support, and various high-defense chariots and anti-vehicles ensure that the people still have a partially normal life in high-intensity warfare.

Zhang Xuesong used holographic projection to simulate the battle mode when the three phases of construction were completed, and the sea city, the battlefield fortress and the sky fortress became relatively safe living areas for the people.

Combat aircraft led by the Helicarrier escort and counterattack the enemy, and in the holographic projection simulation, you can clearly see the combat aircraft shuttling between the three platforms.

Zhang Xuesong said in surprise and deep thought: "This is the planning concept made by our Space Administration in accordance with the development direction given by the alliance countries."

After a while, Yan Wen clapped his hands and said the word "good" loudly, and then added with a slightly derogatory meaning: "It would be better if the word 'concept' was removed."

It is true that no matter how well the conceptual plan is done, if it is not feasible, it is just empty talk and has no value.

Yang Wanjun solemnly approached the holographic projection and examined it with a strategic eye, not thinking about whether it could be realized, but only considering the practicality of this concept.

Looking around at the whimsical looks on the faces of the others, he said: "Before, we didn't know what time and space were going on, and we didn't know that there was a bigger universe outside our universe, and we didn't know that our universe also contained another level of universe, don't you think it seems like answering that sentence, there is nothing impossible, only the unexpected, Major General Yuan, you continue, isn't there a fourth stage." (To be continued.) )