After the protagonist gives the order to build a nest on the spot, the entire surrounding area of the secondary nest is in full swing for a while.

Except for a small number of vigilant ant squads who are concerned about the wind and grass at the entrance and exit of the auxiliary nest, the other ants are busy digging holes and building nests. This kind of work is the skill of the ants, they skillfully find the appropriate ground with high ground and solid soil in the demarcated area, and then a large wave of worker ants quickly clean up the stones and other stones on this small piece of ground, cut down a small amount of weeds and move them away, leaving a circular open space with a radius of about one decimeter.

Then the workers began to dig the holes in and out. Because it is a base nest with military purposes, there is only one entrance, built in the center of the open space slightly higher, the entrance and exit are not straight to the ground, but slightly arced, so as to avoid rainwater pouring directly into the base nest from the hole to bring disaster.

After entering the underground construction stage, due to the narrow passage dug out of the ground, only dozens of worker ants can participate in the construction, and the rest of the ants have to surround the ground, with the soil and other materials on the ground cleared out of the ground, the entrance and exit are piled up high, forming a pyramid-shaped hillock, the hillock is about five or six centimeters high, this is the earth dam that covers the entrance of the cave, as long as the water on the ground is not higher than the height of the earth dam on rainy days, there will be no backfilling.

The ants were digging very fast, and in half a day, they had already dug out the main structure with more than a dozen nests and connected passages, which was enough to accommodate an entire army of more than 1,000 ants. All that remains is to continue digging down into the underground drainage ditch, which can not only accommodate the water drained deep into the nest of the base, but also provide the necessary underground water source for the colony in times of drought.

And when the ants are building, the protagonist is also trying to think about ways to break through the tactics of the paving ant barbarians.

Watching the ants of the legion under his command carrying dirt and gravel in and out of the base nest construction site, busy, a clever plan suddenly appeared in the protagonist's mind: "That's right, why should I fight the enemy hard, I can do earthwork!" ”

The five skills of a soldier in World War II are shooting, bomb throwing, assassination fighting, demolition and earthwork! This also shows the importance of earthwork in human warfare. And what is the content of civil work? To put it simply, it's all kinds of digging and burrowing, which doesn't happen to be the specialty of ants?

While all the legions were busy digging and building nests, the paving ant barbarian army on the opposite side did not move, and only a few scout worker ants were sent out to observe the strange behavior of the big-headed ant expeditionary force curiously. The protagonist sends the Courier Worker Ant to invite the kings of the eight legions who are closer to each other to come over for a meeting to discuss the tactics of the earthwork that the protagonist has just come up with. As for the farther legions, it's not convenient to come over, so it's better to wait to receive the message package from the protagonist.

The commanders of the eight legions, including the public security and the king of the West, soon came over in person, and connected with each other with the protagonists, forming a temporary meeting circle. The protagonist tells the king of these eight legions in detail about the tactics of his earthwork work, and these eight legions will be the main force to assist the army of the Divine King. As for the other regiments that received the packets later, they played a coordinating role.

After the meeting, the eight kings all expressed their willingness to cooperate, especially the public security and the western kings expressed a very obedient mood, and it seemed that they had completely surrendered after witnessing the combat power of the Divine Envoy King's legion. After the eight kings leave, the protagonist asks the messenger worker ants to go to other legions to give orders.

After receiving the unified order, the Big-Headed Ant Legion, which had completed the nesting work, began to assemble and approached the entrance to the secondary nest of the Paving Ant Barbarian Army.

Seeing this, the scout worker ants of the paving ant barbarian army who were monitoring the big-headed ant expeditionary force on the ground immediately retreated underground, and it seemed that the enemy army had made up their minds and would never come out to engage in battle. But it doesn't matter anymore, the attacker always has the initiative, and the defender can only passively wait for the opponent to make a move.

The formation of the Big-headed Ant Expeditionary Force soon approached not far from the entrance of the secondary nest, and ten legions firmly surrounded the entrance. But the expeditionary force did not attack. Except for the ten legions responsible for the encirclement, the remaining forty reserve legions began to burrow in place.

This is the main character's earthwork tactics, I don't attack from the entrance of your heavy defense, I dig countless new tunnels directly into the interior of the secondary nest.

In one of the eight legions that the protagonist has personally communicated, one legion is responsible for the operation, and ten tunnels are excavated at the same time on a construction site far from the entrance. The other thirty-two legions, on the other hand, chose their own excavation sites at closer distances, and each legion excavated four or five tunnels.

The Paving Ant Barbarian Army hid in the secondary nest, they didn't know what was going on outside, only that they had waited for a long time and did not encounter the expected attack. They are not in a hurry, and the last thing the defenders lack is time – if there is enough food.

Soon, news came that on a construction site closest to the entrance of the secondary nest, a tunnel dug by a legion penetrated a nest chamber of the enemy's secondary nest, and the worker ants and soldier ants of the big-headed ant expeditionary force who were originally digging the soil immediately rushed into this breakthrough and engaged the paving ant barbarian army in the nest that was still in a daze.

Because there are 100,000 Paving Ant Barbarian soldiers inside this sub-nest, and the density of the underground ant population is extremely high, it is impossible to launch a sneak attack after digging through, and the Big-headed Ant Expeditionary Force still has to fight hand-to-hand with the Paving Ant Barbarian Army in a narrow tunnel.

Soon, the second and third tunnels were dug into the Vice-Nest, and one Legion after another squad was thrown into the underground battle. At this time, the benefits of earthwork are manifested, as more and more tunnels are dug through, the Big-headed Ant Expeditionary Force, which has the advantage of troops, does not need to attack the underground of the secondary nest through the only entrance, and can devote more squads to participate in the battle at one time. The ability of the big-headed ant soldier ant to fight head-on in this narrow environment is far greater than that of the smaller paving ant worker ants.

Thirty-two legions of earthwork at the nearby construction site were soon all engaged in the battle, more than 90 tunnels achieved multi-point flowering breakthroughs in different directions and different depths under the sub-nest, and hundreds of soldier ants and worker ant commandos of more than 90 squads had successfully occupied a place under the sub-nest and engaged the paving ant barbarian army.

The paving ant barbarian army was a little stunned by this sudden attack from the rear and from within, and the legion that had been prepared for defense on the front line of the cave entrance did not encounter an attack, but the legion that was resting inside and some scattered unorganized worker ants were suddenly attacked by the enemy who broke through the wall. However, the attacked paving ant barbarian army began to instinctively resist on its own, without the commander's order, and the paving ant warriors who received the alarm signal nearby spontaneously used their lives to continuously fill the defense gap, preventing the further breakthrough of the big-headed ant army. After all, the narrow underpass environment is too advantageous for the defenders.

However, the real killer move of the protagonist is still to come.