The artillery used more than a hundred cannons of various calibers to fire forward barrage, starting from the non-existent line on the map and advancing step by step towards the coast.
The density of the artillery shells is not high, but it cannot match the power of the artillery shells. The insect-killing radius of the 120mm artillery shells is 22 meters. To ensure the killing effect, the distance between the impact points of the artillery shells is approximately 30 meters.
The caliber of the wheeled assault gun is only over 100, which is not as powerful as a mortar. The advantage of this thing is that it has a long barrel and a long range. It can hit insects at close range, but it is really not as good as a mortar.
The real main force is the 155mm self-propelled howitzer. The shells used in this thing are specially developed for giant insects, and the power is specially increased. The insect-killing radius is 67 meters. If it is hit with one shot, its power covers more than half of the football field.
None of the giant insects within this range can escape, and even if they don't die, they will be seriously injured.
No matter how big the minefield is, it can't withstand such bombardment from artillery. Eighteen 155mm howitzers can cover two minefields in one salvo.
If the artillerymen didn't know how to control the impact point, the artillery shells would have destroyed all the minefields that the insects had not stepped on.
In just half a minute, the bombardment destroyed the insect swarms on both sides of Xidan Port. As soon as the bombardment ended, the base fired several minelaying rockets at the minefield. Countless mines fell from the sky and landed on the minefield filled with insect corpses.
Each mine will automatically turn over after landing on the ground. After the mine is propped up, it will enter the working state.
Some giant insects that were not dead twitched their legs unconsciously, but they happened to be within the detection range of the mines. These small movements immediately detonated the mines.
The number of mine-laying rockets is limited, and the density of newly laid mines is not as high as before, but it is better than nothing.
But the aliens had no intention of giving up, and new swarms of insects swarmed onto the coast.
Liu Huaidong was in bad condition. With the thunderstorm and the shelling, the aliens lost not only 10,000 but also 8,000 giant bugs. Why were there still so many bugs?
No matter how powerful alien biotechnology is, bugs can't appear out of thin air, right?
I just can't figure it out. Now that the bugs have landed, they must be shot.
This time, Liu Huaidong did not draw any dividing lines, and directly ordered the artillerymen to find their own opportunities. The originally dense sound of artillery suddenly became sparse, but every time the artillery hit, a large number of giant insects were killed or injured.
In this way, the defenders and the insect swarm fought back and forth for more than two hours, but the insect swarm was still unable to invade Xidan Port, which made Liu Huaidong very satisfied.
Two hours later, the space battleship arrived, and a salvo of laser cannons killed more than half of the swarm that landed, completely shattering the aliens' plan. The aliens had to cease their activities and suspend the attack.
With the cover of the battleship, the aliens remained silent for the next two days. Until the third night, the situation over the base suddenly changed and dark clouds covered the sky. The aliens took the opportunity to launch a third round of attack, and the insects were the first to attack.
Swarms, all-round attacks of bugs and servants.
Although the defenders had been strengthening their defenses, they still didn't expect the aliens to be so determined. They attacked in droves, catching the defenders off guard.
The defenders on the protective wall immediately fired back, but the enemy's offensive was far greater than before. In just over ten seconds, the insect swarm, led by the servants, broke through the protective wall and burned the war into Xidan Port.
For flying servants, more than ten seconds are enough for them to fly over the protective wall.
When the waiting soldiers rushed out of the barracks, many sections of the protective wall had been breached by the insect swarm, and the areas still in the hands of the defenders were also in danger. At the critical moment, He Xiangdong made a decisive decision and ordered the troops to withdraw underground and continue fighting relying on the strong bunker.
He really wanted to remove the soldiers on the wall, but time did not allow it and the enemy could not give him this opportunity.
The servants who invaded the port immediately destroyed the giant ship docking at the port, and then launched a strong attack into the interior of the port against the firepower of the defenders. The exchange of fire between the two sides was extremely fierce. Every trench and every bunker had to be fought over again and again.
There were corpses from both sides, and the ground was stained red with blood.
Liu Huaidong received the news from the direction of the port immediately, but when he received the news, the above-ground part of the port had already fallen into the hands of aliens.
He was still worried about not falling into the hands of aliens. In this situation, Liu Huaidong put aside his worries and directly ordered the artillery to open fire and cover the port with artillery shells.
We can't use large-caliber artillery this time. That thing is too powerful. Even if it doesn't hit the bunker, the shock wave is enough for the soldiers in the bunker to drink. Only mortars can ensure the death of the enemy.
to ensure the safety of the underground bunker.
With an order, all the mortars opened fire at the same time, and the shells fell like raindrops, covering the entire port. Regardless of giant insects or insect-men, as long as they rushed into the protective wall, they would not be cured. Even the servants suffered heavy casualties in the shelling.
But this opportunity was something the aliens had finally waited for, so how could they suspend their attack because of a temporary failure?
Before the bombardment was over, subsequent swarms of insects poured into the port. This seemed to be the intersection of the cannonballs and the swarms of insects. Both sides invested regardless of the cost, as if aliens wanted to fight the swarms with the cannonballs!
Liu Huaidong suddenly realized the purpose of the aliens. What the hell, did they want to use the insect swarm to consume the cannonballs?
The base has a lot of artillery shells in reserve, but the ammunition capacity of the artillery carts is limited. After all the artillery shells are used up, it will take time to replenish them. The aliens may want to take this opportunity to launch a general attack on the base!
Liu Huaidong immediately reminded the artillerymen to pay attention to the replenishment of artillery shells, and ordered the artillerymen to divide into two teams and fire in turns to maximize the continuity of firepower.
However, the swarm did not really stand still. Only half of the artillery was left to fire, and the shells immediately became sparse. The swarm took the opportunity to attack the main entrance of the port, broke through the gate in one fell swoop, and flew all the way along the road leading to the base.
Liu Huaidong couldn't help but be surprised. This road was the only safe passage between the coast and the base. Could it be that everything before was a cover and the road was the true target of the insect swarm?
But do the aliens think the base is too simple? If bugs come from all directions, there is still a possibility of breaking through the base. If they come from one direction and are almost straight kilometers, this is no matter how high-quality it is.
Is it a good living target?
Liu Huaidong even looked forward to the insect swarm approaching early, so that the damn aliens could take a good look at how powerful the base's defense was!
For this reason, he simply ordered the artillery to cease fire and proactively gave the insects a chance to get closer.
The speed of the insect swarm is very fast, but the insects are not as disciplined as humans. Many giant insects ran off the road while running, and some let their companions squeeze out of the road halfway through.
Regardless of whether they were active or passive, these giant insects stepped into the minefields on both sides of the road. The result was that wherever the insect swarm moved forward, the sound of mine explosions followed, which was equivalent to the insect swarm actively notifying the base of their location.
This section is about to end, and the following is the arrival of the alien fleet on the earth. I am a little hesitant now. Should I write it directly from the perspective of the earth? Or should I write it from the perspective of the protagonist.
