The military doctor's words were equal to nothing, Cao Guoliang got up and checked, and found that he was not scratched by the fragments of the shell, and he felt a little comforted, at least the little devil had not used the toxin on the shell.

The fragments of artillery shells are more powerful than bullets, and when they explode a large area, these small fragments hurt the target even more.

Since the little devils did not use the toxins on the shells, does it mean that these toxins did not enter the island military factory, they did not produce them in batches, in other words, this is not the behavior of the island army, but a division or a certain wing unilaterally using it?

As soon as Cao Guoliang's doubts were raised, they were denied by the military doctor, the temperature of the shells fired was too high, and no toxin could pass through such a high temperature, so if it was unrealistic to use it for artillery shells, even if it was a bullet, it was impossible to hide the poison inside.

If it is installed inside the bullet, the weight of the bullet will change significantly, the performance will also change, and how to ensure that the toxin can be released in the human body...... In fact, many poisons are not small in lethal amounts, for example, it takes about the size of a cold pill* to kill.

Bullets are thin and small, and they need to maintain a certain mass to be able to fly steadily, and it is difficult to find a place on the bullet to place a sufficient amount of poison.

"According to what you say, their toxin is smeared on the bullet casing, but the temperature of the bullet is not low, why are they not afraid of high temperatures?" Cao Guoliang said strangely.

The medic replied: "That's the crux of the matter, but bullets and shells are still incomparable, and the temperature of the shells will be higher." On this issue, I have consulted military experts, in their words, the temperature of the bullet chamber depends on two factors, one is the deflagration temperature of *, and the other is the friction between the bullet and the inner wall of the gun chamber, although the temperature of the bullet * at the time of deflagration is several thousand degrees high, but because the action time is very short, and only mainly acts on the tail of the bullet, so the impact is limited. Another is that the friction between the bullet and the rifling produces heat, which is the same as the above, and it is also very short, so although the bullet is pushed out by a ball of flame, it is limited by time, which determines that it is at most about a few tens of degrees, and the warhead part is lower, so it is entirely possible for the toxin to remain on the warhead. ”

Cao Guoliang nodded, was silent for a while, and said, "Find out the reason as soon as possible." “

"Yes, Deputy Commander." The medic stepped forward and replied, "The autopsy and laboratory tests are already underway, and we must find out what kind of toxin it is as soon as possible." ”

Cao Guoliang didn't say anything more, silently patted the military doctor's shoulder, raised his leg and walked to the command post.

Because the troops had stopped attacking, and the sound of gunfire had gradually subsided, there were soldiers on the front line carrying wounded soldiers to the rear, basically all of whom had already been killed, and only a small number of minor wounded were caused by poison gas.

The group did not enter the command post, but went directly to the front.

The temperature in the jungle was high and the humidity was heavy, making it difficult to breathe, and after walking for a long time, everyone's military uniforms were all soaked and breathing became a little short.

A complete system of trenches has been built on the front line, and there are even a few that have been extended forward, which shows that they have even used earthwork, but they still cannot break through the enemy's defenses.

The soldiers sat or lay in the trenches, cursing or silently smoking, and their gas masks were thrown at their feet or hung on their guns.

Even if it is an elite unit, it is inevitable that they will be depressed if they lose the battle, not to mention, the new Fifth Division is a very arrogant army, they have been invincible since its formation, and they have gnawed on the hard bones that are difficult to gnaw, but they have really not fought this kind of nest battle.

"What, this is frustrating?" Cao Guoliang said with a dignified face.

There is no rule for saluting the commander on the battlefield, from the time Cao Guoliang and his party entered the trench, the soldiers quickly got up from the ground and saluted, and when Cao Guoliang questioned them, most of the soldiers lowered their heads and looked guilty.

A major stepped forward and said: "Master, it's not that we are greedy for life and afraid of death, it's really the little devil's damn yin, it's all some shady tricks that give birth to sons without fart and eyes, it's too fucking lacking in morality." ”

It was Zhang Zui, the commander of the third battalion, who spoke, and it was he who took on the main attack task an hour ago, and at this moment his face was flushed, and only swear words were left in his mouth.

"Tell me, in addition to using poison gas bombs and poison bullets, what other tricks does the little devil have." Cao Guoliang said.

"Master's seat...... Look at ......" Zhang Zui said and took two steps forward, staggering the trees that blocked his vision, leaning his waist without showing his head, pointing up to a relatively open area in front of him and then said, "Do you see the big tree in front?" ”

Cao Guoliang learned from Zhang Drunk, clinging to the trench and revealing half of his head, glanced out, and quickly shrank back, and said: "See, about one hundred and fifty meters ahead, there is a big tree in the center, and there are many craters on the trunk, why, there is an enemy's fire point on it?" ”

"It's a cannon, there is an 80 mortar on it, the barrel sticks out from between the branches, as long as we charge, we will fire with a bang, such a close distance, it is simply smashed down, the casualties caused by the fragments are amazing, the entire passage is blocked with one cannon and one machine gun, how many people are not enough to see, by the way, there is also a light machine gun on the left side of it."

Cao Guoliang glanced out again, this time for a longer time, and looked carefully.

The big tree is about the size of four or five people, the trunk is thick and the branches are luxuriant, the branches on it are probably thick and large basins, and they are closely relied on, the muzzles of the cannons are vaguely visible between the branches, and the trunks and branches are broken everywhere, obviously not less bombarded, machine gun fire, obviously useless, the thick trunk is better than the protection of the general fortress, and the small-caliber artillery fire can not hurt the personnel inside.

Curved fire is used as direct firepower, and this kind of ultra-close range is placed in the front line, it is simply a bayonet on a cannon, and there is really no good way to destroy it.

In the jungle, due to the limitations of the road, it is impossible to drive into large-caliber artillery, and it is impossible to aim at so many trees, it is impossible to aim at it at close range like the enemy's artillery, which is impractical.

"Didn't you think about using *?" Cao Guoliang retracted his gaze and looked at Zhang Zuidao.

"I thought about it, but it was not realistic at all, * there was only a thirty-meter attack range, and it was simply impossible for a soldier to advance to such a distance. The enemy's ground firepower is equally strong, Shizuo, look at this side again......" Zhang Zui said and continued to walk forward, stopping after a few dozen meters.

The situation here is slightly more complicated than what I just saw, the area is not as wide as that side, the trees are relatively small, but there are many clumps of plants, but it has basically been swept away by bullets and artillery fire, and everywhere you can see is messy and dilapidated.

Under the guidance of Zhang Zui, Cao Guoliang saw another artillery piece of the enemy, but this artillery was even more strange than what he saw earlier.

“