Ye Yang did not exaggerate at all, and after a few hours, all the open spaces were joined together, and a heavy concrete wall split the open space on the west side of the road in two.

Not only that, the engineering corps also installed various defensive facilities at the head of the wall, there is a fire point every 20 meters, each fire point has a multi-barreled machine gun, and below the fire point is the ammunition delivery equipment, which can drive the ammunition truck directly under the fire point to feed the machine guns on the wall.

This is the ammunition supply method used on warships, as long as the ammunition truck is not available, it can supply a steady stream of ammunition to the machine gun - ordinary machine guns simply cannot withstand the high-intensity fire of this type of ammunition feeding, only multi-barrel machine guns will do.

In addition to the firing points, there are also a large number of firing emplacements on the wall, each of which is prepared with a large amount of ammunition, all of which are pressed into the magazine drum, which can be loaded onto the gun and fired.

The distance between the firing points is not chosen at random, twenty meters is exactly where a squad is put down!

Not only are there all kinds of guns on the wall, but there is also a set of flamethrowers on each section of the wall, which can find a huge fan with a radius of tens of meters with a single shot, and turn all the insects within the spray range into burning candle heads.

Not only the various arrangements on the wall, but also the various means under the wall, an average of 2.4 mortars behind each section of the wall, if it is not too short, this number can be increased by at least three times!

Such a wall is not enough to say that it is impregnable, but it is enough for the insects to drink a pot.

Faced with such a wall, Ye Han couldn't tell what it was like in his heart.

With it in the way, not to mention the elite airborne division, it is not a problem to pull up the recruits who have just finished training and block the swarm.

However, Ye Han was very suspicious of the role of this wall, didn't the insects know to go south, bypass the high wall defense line and then go north?

Also, even if the insects don't want to go south, can't they go straight north?

To be honest, Ye Han really didn't know why the boss was so confident, could it be that he had mastered the pheromones of the swarm?

The questions in his head could not be answered, and Ye Han didn't have the heart to get to the bottom of it, in short, just follow the orders from above and guard this wall.

But new questions have sprung up again, even in order to deal with the insect swarm, there is no need to waste manpower and material resources to build such a wall, right?

He couldn't think of the reason, and it didn't take long for him to get the answer to the matter from Ye Yang.

The situation is actually very simple, after the insect swarm leaves the territory of Asan almost straight to the east, if it is not stopped, after the insect swarm passes through northern Myanmar, it will cross the border into Dian Zhou, and then use Dian Zhou as a springboard, the north can invade Shuzhou Qianzhou, and to the east it threatens Guizhou and Yuezhou, and at that time, the entire southwest will be messed up by the insect swarm.

Of course, it is impossible for the military to turn a blind eye to the entry of the insect swarm, but the military's encirclement and interception will take time and the investment of manpower and material resources, and it is really difficult to say when the insect swarm will be eliminated.

On the other hand, it would be different if the insect swarm was kept out of the national border, the north side of the high-walled defense line extended to the west side of Yunnan Prefecture, where there were mountains about 3,000 meters above sea level, which was the least favorite terrain for insects, and the possibility of the insect swarm crossing the border from there was very low.

But behind the high-walled lines, where the altitude is mostly less than a thousand meters, and it doesn't take much effort for bugs to cross the border.

The High Wall Line is just blocking this section of the border, and if the swarm goes south, after bypassing the southern end of the High Wall Line, it continues east until the sea is the territory of other countries.

As for whether the insect swarm will go north after bypassing the high wall defense line, it is not something that Ye Yang can control, Ye Han is extremely suspicious, whether the north capital has arranged some back-up.

However, Yeyang knew that all the rivers near southern Xinjiang were under the control of the military, and strategic nodes such as bridges and dams were key areas for defense, so there must be some way to prevent the swarm from entering.

As the sky gradually got dark, the engineers installed a batch of special lamps on the wall before it got dark, and by the time it got dark, the lights had illuminated the west side of the high wall defense line as bright as day.

According to the instructions of the Northern Capital, the insect swarm will arrive at the high-wall defense line within two hours, Ye Han wanted to arrange for the troops to go to the wall in advance after receiving the notification, but as soon as the soldiers made a move, they were stopped by Ye Yang, who came in a hurry.

According to Ye Yang, the military has already arranged a large number of troops on the high-wall defense line, and even the engineering troops under his command have to go up to the wall to defend after the arrival of the swarm.

Hearing him say this, Ye Han felt strange, since there was a high wall and troops were arranged, what was the airborne division pulled over?

Ye Yang continued to speak, and Ye Han understood.

The airborne division was sent over because all the troops on the high-wall defense line were second- and third-line troops, and even if a batch of weapons and equipment was urgently replenished, the military could not avoid all kinds of worries.

The airborne division was called over, firstly, to suppress the insect swarm at a critical moment, secondly, to boost the morale of the troops on the defensive line, and finally and most importantly, to let the airborne division be on top of the area with the most bugs and act as the mainstay.

Therefore, the airborne division does not have to go to the wall for the time being, and must wait until the main direction of attack of the swarm is determined above.

It's right to think about it, the length of the high-wall defense line is tens of kilometers, to say the least, but the 1st and 4th divisions with less than 1 and 4 divisions together can only occupy 5 kilometers of the wall, and even if the personnel are diluted, one squad guarding two sections of the wall is only 10 kilometers.

The airborne division is indeed an elite unit, but no matter how elite the unit is, it will not play much role in a battle of this scale, and the real main force must be a large number of ordinary troops.

Watching Ye Yang lead the troops to be busy, Ye Han had a very novel feeling.

All along, he led the kind of troops that charged ahead, and this is the first time he has stayed in the back and stayed idle.

After more than an hour, the northern capital finally determined the main attack direction of the swarm, and ordered the high-walled defense line to be on guard along the entire line, and also ordered the airborne division to move twelve kilometers to the north.

Ye Han didn't even have time to say goodbye to Ye Yang, so he led his troops into the truck heading north.

When the convoy was about to arrive at its destination, Ye Han received a new order, asking Ye Han to lead the troops to capture a few giant insects alive, and to be more detailed, that is, there is at least one of each giant worm, which can be missing arms and legs, but the body cannot be disabled.

And one is the bottom limit, it's best to catch more, ten or eight are not too much.

Seeing this, Ye Han probably understood, it should be that Bei Du didn't know about the situation of these giant insects, and planned to catch some giant insects to study them.

This task is indeed not suitable for ordinary troops, only troops such as airborne divisions, which often carry out special tasks, have the ability to catch a few after facing the swarm of anger. 8)