Ten thousand I am across the heavens

Chapter 407 Tunnel Battle
The lethality of biological and chemical weapons on the battlefield is undoubtedly extremely huge.Sansho fish poison is one of the most poisonous in the entire ninja world, and it can cover the entire front when used by psychic beasts. The purple poisonous mist is heavier than the air, spreading along the ground, following the direction of the wind, It turned into a high wall without any gaps to escape, rolling towards Akatsuki's army.

The frontline commander immediately ordered Akatsuki's army to put on gas masks and use mass-produced sodium peroxide breathing masks. Although this kind of mask is not easy to preserve in the humid rainy country, it is still better than oxygen cylinders. It is much cheaper and easier to obtain, and the most important thing is that such a breathing mask can be made into a fully enclosed type, so there is no need to worry about poisonous gas leaking in.

Knowing that there are psychic beasts like salamanders, Xiao naturally made a lot of preparations for anti-virus. Lan Nuo specially designed a chemical production line with the engineers he trained, and produced a large number of them before the war started. breathing mask.

The poisonous gas did not cause much damage at the first time. No one was poisoned by breathing, but the poisonous gas of the salamander fish is pervasive, and poisoning reactions may occur after being exposed to the poisonous gas for a long time.

But they obviously can't retreat now, they finally occupied the dangerous terrain and built a defense line. If they retreat now, all the previous sacrifices will be in vain.

The sensory ninja beside Hanzo observed the situation in the distance, and cold sweat dripped down his forehead: "My... my lord, Akatsuki's rebel army did not suffer any casualties. Each of them is equipped with a gas mask. This... how is this possible!"

Sensing Ninja still has an understanding of the productivity of the ninja world today. It is incredible to produce so many gas masks in a short period of time in this era when logistics and transportation still need to rely on horse-drawn carriages most of the time.

"Is it Pixiu? It's really troublesome!" When Hanzo thought of Lan Nuo, he felt extremely headache. Even if Lan Nuo did not appear on the battlefield and showed a strong combat effectiveness, the productivity brought by his logistics organization and scheduling is also incomparable. Headache.

Why is there such a person with both civil and military skills in this world? Under normal circumstances, shouldn't those peerless powerhouses be more or less out of their minds?
Not to mention Senju Zhuma, it basically depends on his younger brother's external brain, Uchiha Madara is also an old middle schooler, but Lan Nuo seems to have no brain problems at all due to his expanding strength.

"Wait! Even if you don't breathe, the toxin will weaken them. The poisonous fog will last for an hour. After an hour, follow me to attack!" Hanzo had just made a decision when Akatsuki's ninja made a move.

The earth escapes the earth and flows into the wall!
Earth walls were erected one after another. Using this move on a large scale theoretically consumes a lot of Chakra, but the earth walls made by Akatsuki are quite thin and have no defensive power.

Immediately afterwards, the wind escaped the damage, and several ninjas who were good at this move used it at the same time. The walls created by the earth escape were only to restrict the direction of the wind flow. The fog was blown into the basin in the distance.

Akatsuki's ninjas control their own wind power output. Under the constraints of the earth wall, they can pay as little chakra as possible to maintain the wind enough to blow away the poisonous mist.

It's not just the ninjas who are making efforts, the soldiers on the front are also making their own efforts. No weapon is perfect and has its loopholes. Facing the pervasive poisonous fog, the soldiers feel the tingling of their skin , very clear that if the body is exposed to such poisonous mist, it will also be poisoned.

Some people began to try to wrap their exposed bodies with water-soaked cloth strips, but the effect was not good.The toxin will dissolve into the water and still cause damage to the soldiers in the end.

"We need a confined space." A commander made a request.Nagato discussed with other ninjas that they could use the earth dungeon to seal up the soldiers, but every time the front line faced an impact, they had to release the earth dungeon and release the soldiers, which consumed too much chakra.

"That... I have a way, I wonder if it can work?" A soldier hiding in the trench reported his thoughts to the squad leader.

In the night school established by Lan Nuo, he had been exposed to relatively basic education, in which besides writing and arithmetic, he also had simple knowledge of natural science.

And the way he thought of was to drill a hole underground, but instead of sealing the exit of the hole, the exit was made like a U-shaped pipe, first going downhill and then uphill. The most troublesome sealing problem was solved with water. , as long as enough water is poured in, the water will automatically fill the bottom of the channel, completing the seal, which is even stronger than using the earth tunnel to seal.

When it is time to go in and out, the water can be pumped away, and even in extreme cases, it can be directly passed through the water. The energy of ninjas is limited, and it is impossible to take care of every soldier. Compared with him using this method, Each cave can hide about thirty or forty people, and the construction can be completed even without the cooperation of ninjas.

Although it was just an ordinary soldier's suggestion, it was immediately adopted if the suggestion was reasonable.The earth escape ninjas quickly built such underground fortifications everywhere on the front line. Compared with simple manual excavation, with the cooperation of ninjutsu, the construction speed was very fast, and the soldiers hid in the water-sealed caves.Only a few people were left on the front line, as scouts, to cooperate with the ninja to detect whether the enemy was attacking.

The Sensing Ninja of Yuren Village sensed the breath of life in the distance into the ground, and quickly said to Hanzo: "My lord, the enemy's army has already fled to the ground, we..."

"It doesn't matter, the sansho fish poison is heavier than the air around us, and it will automatically flow to the lower place like water. If they hide underground, they must be completely sealed if they want not to be corroded by the poisonous gas. During this process, If they open the entrance to the underground space, my poisonous gas will flow in, and the basement they built will be ruined.

Let the ninjas harass and attack in batches, so that they can't hide in the ground with peace of mind, wasting the chakra of Akatsuki's ninjas, and wasting his own chakra to protect these ordinary people on the battlefield, it is simply a dead end. "Hanzo ordered the attack, and immediately the ninjas of Amane Village wearing gas masks attacked the front line in batches.

Akatsuki's ninjas and scouts both discovered the enemy's attack and immediately notified their comrades in the underground fortification that the situation was urgent. The water in the passage was not pumped out at all, and everyone directly drilled out of the water and returned to the trench.

However, what they faced was only the enemy's harassment, and they easily repelled the attacking ninjas. If they were lucky, they could even complete one or two kills.

……

"My lord, they're back underground again, this is the fourth time!" the perception ninja reported to Hanzo.

"Very good. Create the basement four times in a row. Akatsuki's ninjas have probably run out of chakra. After 5 minutes, the poisonous gas will dissipate. The whole army will attack. We will wipe out the rebels today!"

[To be continued]

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(End of this chapter)