Seven hours after landing, Zhao Xuanxi opened the projector in the temporary military base, and the projection screen was a sand table map of the entire Qianao Island.

Zhao Xuanxi pointed his finger on the east coast of the map and enlarged a beach area. After enlarging a square on the map, it appeared on the projector.

This is a platform, hundreds of meters long, suddenly appeared on the beach. Then it extends to the sea to the depth of the water, which is obviously a pier.

The platform is covered with various shells. The scout shovels down with a shovel and can find that the platform is of cement texture. This is a human building, and to be precise, a building left by humans in the sea.

After the Age of the Death of God, humans on land and humans living in the ocean separated. When the two ethnic groups lost communication (the traffic facilities of ships and aircraft were interrupted), the two human ethnic groups separated.

From a current perspective, the human science and technology society in the ocean in the Shenyue era fell more thoroughly because the ocean lost convenient transportation and reconstruction of civilization was much more difficult than land. One thousand six hundred years ago, when the Oka people's steamships had just expanded to the Southern Ocean, they saw that the sea humans were still using ceramic (enamel) swords and fuel spears.

However, in the early stage of the Death of God, the sea humans still achieved the same record as the land humans - that is, to destroy other marine intelligent species on the ocean.

The core reason is that the farming economy fights the nomadic economy, that is, the advanced economy fights the backwardness.

Because farming can form population gatherings around a stable production area, and the population gathering areas are sufficiently formed to form a rich handicraft. After the era of Shenyue, sea humans were able to make large quantities of wooden sailboats and fire high-temperature ceramic arrows in large quantities. They can smel the metal weapons that are anti-rust in enamel. They can fire ships of quicklime and throw them into the sea water to form dead zones.

However, nomads cannot gather together stably. Since the interpersonal society cannot provide a stable place of residence, it is impossible to produce craftsmen who are thoroughly engaged in handicrafts.

The ancient sea tribes had much more magical talents than sea humans at that time, but their culture was nomadic, and they lived by fish. After the fall of civilization, they followed their own culture to live.

At that time, the sea humans lived steadily on shallow seas on the continental shelf and planted seaweed farming economy.

Cultural habits determine the social economy, and social economy determines the fate of the race.

More than 20,000 years ago, the ancestors of the sea humans could pull out hundreds of times the sailing ships and transport hundreds of tons of lime at any time. They would crush them after all the supplies.

As a result, in the endless hatred of those native races, the "remnants of human beings" dragged away the originally diverse marine intelligent life.

When the topic comes back, the sea humans are farming people, and their crops are seaweed.

These seaweeds naturally need to be processed. Drying them with sunlight is the method of sea humans to store food and grass for a long time. In the east of Qianao Island, it is a good shallow sea planting area.

At present, the platform projected by Zhao Xuanxi is located in the east of a large natural shallow sea area, which is a natural agricultural reclamation area for sea humans.

One thousand five hundred years ago, the entire Qianao Island was the territory of the vast sea tribe of the sea humans. After harvesting kelp, the sea humans would search for stones on the shore to dry them, and then transport them to the freshwater pool of the hinterland island in the south to hydrolyze microorganisms to produce starch.

After entering the industrial age, the huge stones of sea humans drying kelp turned into cement platforms. At present, the cement platform that Zhao Xuanxi looked at is a ruin two hundred years ago. In the past ten years, sea humans have been cleaned up twice.

The reason why the sea humans completely abandoned this place two hundred years ago is because the sea temperature has become unstable in this area, and red tides appear on a large scale in the shallow sea in the Eastern Continent.

The powerful sea human forces temporarily retreated southward, while the land humans on the eastern continent took advantage of the situation to seize Qianao Island. However, in the past twenty years, a series of facilities for sea humans in the northern waters have been built, making the hydrology here controllable. Then they began to mobilize forces to seize Qianao Island again.

It's getting late.

Su Deng returned to the garrison. After the construction of the defense facilities in the garrison, barbed wire was pulled on several intersections. Remote-controlled mines were arranged in the jungle around him. Military dogs were even pulled out of the cage, fed stimulants, and dragged out to watch.

After Zhao Xuanxi saw that Su Ding was safe, he sent Su Ding back to the warship at the port. He summoned the captains on the land military base to make arrangements for the island map.

Zhao Xuanxi: "Sea humans are now active frequently on several large islands in the southwest, and their invasion forces are about 500 to 2,000 people. They will also arrive within this week. I can tell you that the new magic inheritance of sea humans is very different from us. Technology and technology are also different from us."

Zhao Xuanxi started the development technique. A mechanical body with a diameter of three meters and six long legs appeared on the development technique. The development technique included seven mechanical turtles and seven optical models. The mechanical turtles could be installed with different modules for modification.

Some turtles have mechanical turrets on their backs, some have mortars on their backs, and some have rocket launchers on their backs.

Zhao Xuanxi: "The biological organism has been eliminated on the continent. However, in the ocean, the sea humans still retain it. In every conflict, this metal monster is used as the leading force. The heavy firepower it loads is very terrifying.

So everyone should avoid the edge and arrange anti-heavy armored mines in time to prevent them when the enemy tries to land."

The development then switched to another unit, which was an infantry unit, but was wrapped in iron sheets. After equipment, it weighed more than 300 kilograms. It was more like the power armor of the interstellar era. In combat, these infantry wearing armor would cover the turtle-shaped mecha landing in combat.

Zhao Xuanxi: "The development route of the power suit of sea humans is different from ours. The core of their territory is a large shallow sea continental shelf, so development is amphibious, that is, switching to swimming forms underwater."

The mecha in the image enters the water and becomes a form of multiple blades inciting it. The specific swimming posture is similar to the leaf pod, which is the Cambrian overlord's strange shrimp (now extinct).

Zhao Xuanxi: "So on land, their walking state is very bloated, but their armored areas are very thick." - The primary indicator of all mechanical armors of humans on land is speed.

Zhao Xuanxi marked the defensive armor modules on the bloated mecha red on the development technique, and focused on the weaknesses of the joints and armor gaps on the mecha.

The tech tree of sea humans is completely different from that of land humans

First of all, their internal combustion engine technology tree is not as good as that of humans on the land. Because the land environment depends on speed, in the marine environment, seawater provides hiding, and of course, seawater resistance also hinders the development of high-speed and high-power.

The amphibious mechas of sea humans cannot be light at all. Moreover, mechanical equipment that has to be soaked in water for a long time has buoyancy support in action. Excessive body size does not affect the mobility. Just like animals tend to become larger in sea water, sea humans' mechas have also been gaining weight over the past few hundred years.

Now, when more than 20 tons of mechas of sea humans came directly to the shore to lift a 20-mm caliber chain cannon and fired fire at the shore. Then the propeller stirred the waves and retreated into the sea water. Only traces and sea water waves were left on the beach. This operation was like a crocodile predation, which made the land humans who had no time to mobilize heavy firepower very confused.

Moreover, although the sea humans do not use internal combustion engine technology, they use electric technology. In particular, aluminum sheets use sea water electrolyte discharge technology, which is widely used in sea human mechas. Their mechas have not eliminated biopower, but the operating system is extremely electronic.

The occupational system of sea humans is also completely different from the three superior occupational systems of land humans, the Great Wall, the General, the Power, and the three superior occupational systems. There are only two professional series, and these two series do not mention the difference between lower, middle and upper, but are distributed according to the level one to nine.

The topic is back to the present.

In the camp, in order to deal with the combat power system that is completely different from that of the land humans, Zhao Xuanxi attached great importance to it in tactics.

In terms of equipment system, everyone is equipped with combat uniforms, although three-quarters of them are just powered exoskeletons with carbon fiber materials, and the price is lower than that of combat uniforms and is not as good as combat uniforms in agility.

However, the ability to carry long-term marching is higher, and can carry 50 kilograms of weight, and conduct combat operations in bumpy areas like ordinary people.

In this combat distribution, Zhao Xuanxi arranged the team wearing agile combat uniforms at the forefront of the war zone, and the soldiers carrying the weight-bearing exoskeletons were placed at a later position.

Frontier infantry collects frontier information.

Reloading can carry long-range individual rockets to provide precise support to the battlefield.

Of course, all personnel have the same electronic communication equipment.

Under Guangling's strong suggestion, Zhao Xuanxi did not make any equipment differences in this regard. Everyone's battlefield communication can be transmitted to the command center through high-altitude relay airships.

The situation of the entire island is actually unfolded in the highest command center like a game map.

In addition, Zhao Xuanxi can provide a deep battlefield perspective on any area at any time - send Su Ding to the combat area, and the battlefield transparency will be doubled.

Zhao Xuanxi, who has been involved in military books since childhood, has carefully practiced what he learned when he was young. He was mobilizing the bulldozers in his hands, digging trenches in some key areas, and building defensive barriers.

When Zhao Xuanxi was busy, Su Ding (Guang Ling) did not say anything, and Su Ding didn't understand this coastal battle.

On the warship.

Su Deng looked up at the starry sky in the sky and silently said, "Sea humans are an unknown area. In the last life, danger was always a place to be ignored. Once I discovered it, I could only choose to end. So now, um, where is it?"

Su Deng has never forgotten the opponent mentioned by the Reincarnation Light Group. Su Deng is not sure where this opponent is, so he has to take a look at it in every place.
Chapter completed!