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The ”bridge encirclement plan” is a response plan specially formulated by the senior officials of Huaxia state for the exotic bridge.

The first step of the project is to determine the level of alien threat connected by the alien bridge.

Among them, the lowest lv0 level is inanimate, which is the simplest level. No special measures need to be taken. Soldiers can be sent to guard and pull up the barbed wire.

For example, the third and seventh secret place in the world belongs to this kind.

There are plants and a small amount of herbivores, LV1. At this level, barbed wire is placed around the bridge, and soldiers are armed to guard for 24 hours to avoid species invasion. At the same time, campsites will be arranged around the bridge, and soldiers and scientists will be arranged to enter the exotic area to explore the resources that may be useful.

For example, the second and eighth secret place belongs to this type.

There are herbivores and carnivores, but the number is within the scope of monitoring, which is Lv2. At this level, roadblocks are set up around the foreign countries, and the troops are heavily guarded to prevent foreign predators from crossing the border at any time, and large-scale development is also carried out at the same time.

For example, the ninth frontier of China, the eleventh frontier of the United States and the fifth frontier of the European Union are all of this kind.

If we go further, we need to start the bridge reclamation project.

The main goal of the project is to target LV3 and above.

There are carnivores, herbivores, complex geographical environment, suitable for the survival of a large number of creatures in the exotic, LV3.

This level of alien threat is far higher than the previous three levels. There are large-scale predators in the alien, and there are large-scale unexplored areas suitable for biological survival.

In the face of LV3 level and above, we need to dig a huge trench around the exotic bridge, and at the same time build a strong wall to completely block the whole exotic bridge, so as to defend against the creatures that may invade in the exotic area on a large scale at any time.

The first-class bridge enclosure plan, the trench is 25 meters wide and 5 meters deep, and the wall is 10 meters high. It has living space for soldiers to shoot.

In the second stage of the project, the trench will continue to deepen to 10 meters, the wall will be 50 meters high, and the airborne heavy Gatling machine guns will be installed.

In the third level bridge enclosure plan, the trench will not move, and the wall will be completely built into a semicircle, and the exotic bridge will be completely sealed inside to avoid the invasion of powerful alien flying creatures.

All of these are called the ”bridge project”.

”Mr. Liu, commander Meng,” after all, the plan to encircle the bridge is not so simple. Zhao Qimin still needs to make the final confirmation: ”for the 19th foreign land we have discovered, how many levels do you think we should start the bridge encirclement plan?”

This is very important. After all, it is linked with money. The investment between the first and second levels is definitely not as simple as doubling.

”At present,” Liu Huajun, after all, was born as a scout, and he has rich experience, so even commander Meng Tinghui attaches great importance to his opinions. So at this time, he expressed his opinion: ”we should start the first level plan first, and then we will analyze it after the scouts come out.”

”But...” Does Zhao Qimin think: ”the scale gap between the first level plan and the second level plan is too big. How deep should we lay the foundation?”

One of the key points of the project is the foundation.

The foundation strength of the ten meter high city wall and the 50 meter high wall is definitely not on the same level.

”Lay the foundation according to the secondary plan,” Liu Huajun looked at Meng Tinghui: ”commander Meng, what do you think?”