A magazine of 30,000 rounds, you call it Hanyang

"Report to the Commander, the entire artillery squadron of the 3rd Infantry Battalion has been destroyed..."

"Reporting to His Excellency, the Regiment Commander, the 3rd Infantry Battalion launched several charges, but each was repelled by the Sharp Knife Regiment..."

"Report to the Commander, the 3rd Infantry Battalion can no longer hold out..."

"Report to His Excellency, the Captain..."

It was naturally easy for the artillery battalion of the spearhead regiment to deal with the artillery units of the Japanese outer reinforcements without much effort.

Most of the Japs in the inner area had been killed by poison gas, and their original plan of attacking the spearhead regiment from both inside and outside with artillery fire could no longer be realized.

As for the Japanese ground forces, they were basically like serving food in front of the fully armed spearhead regiment soldiers.

The main reason why the Japanese held out for more than half an hour under Niu Dashan was because it was difficult to pursue them in the mountains.

If the road was relatively flat, the soldiers of the Sharp Knife Regiment would chase them on Triumph motorcycles, and these devils would probably not be able to hold out for even ten minutes.

"Bag! Bag!"

Matsui Shunsho's face turned extremely pale.

Of course, this was not only because of the despair brought to him by the Sharp Knife Group, but also because the poisonous gas was gradually eroding his body.

A feeling of powerlessness and frustration emerged in Matsui Shunsho's heart.

"No! I will never die here, Zheng Kaixuan, you can't defeat me!"

Matsui Shunxiang was in great pain and urged the radio operator almost at the top of his lungs.

"Quick! Contact Commander Shinozuka and ask him when the Locust Army's fighter planes will arrive!"

"Hi!"

The Japanese radio operator next to him, under the light of the flashlight, began to send the message again with sweat all over his forehead.

This was the eighth time that Matsui Shunsho had urged him to ask Shinozuka Yoshio.

“Beep beep beep beep…”

At this moment, the radio next to him suddenly rang.

The Japanese radio operator quickly recorded the message and then quickly translated the content.

"No need to send it, Your Excellency the Captain, no need to send it! We are saved."

The Japanese radio operator even spoke with a hint of surprise and trembling in his tone.

"The expeditionary force headquarters called back and said that three Locust Army fighter planes took off from Taiyuan City Airport over an hour ago. They must be arriving soon."

"Yoshi! His Majesty Tianhuang will be torn to pieces! Commander Shinozuka will be torn to pieces! The Great Day Air Force will be torn to pieces!"

Upon hearing this news, all the Japanese soldiers in the cave began to cheer and jump.

They felt that they were saved!

The air in the cave was extremely polluted, and many Japanese soldiers were already suffering from oxygen deprivation.

Not only is it stuffy, but it's also extremely hot with so many people crammed into a small space.

The protective clothing they wore could not block all the poisonous gases. When they were outside just now, these devils were more or less corroded by the poisonous gases. This also caused many devils, including Matsui Shunsho, to feel nauseous and dizzy.

If they couldn't escape from here quickly, they would die. But the members of the Sharp Knife Group were guarding the surrounding woods, and they didn't even dare to lift the wooden planks at the entrance to get some fresh air.

"Rumble..."

At this moment, the unique roar of the bomber cutting through the air came faintly.

"Get out of the cave! We are saved, the Sharp Knife Group is finished!"

Matsui Shunsho was immediately overjoyed.

The fighter plane flying in the sky is his last trump card.

This was also the main reason why he was able to overcome his fear and dare to ambush the Sharp Knife Regiment this time.

All of this was planned in advance by Yamamoto Ikki.

In fact, even if the three bombers were fully loaded with conventional bombs, they would not be enough to wipe out the spearhead regiment.

But this time, the Japanese bombers were carrying poison gas bombs.

The poison gas bomb developed by the Japanese not only takes effect quickly, but also the smoke lasts for a particularly long time.

"Yamamoto-kun really has a plan that's perfect. No matter how cunning Zheng Kaixuan is, he can't resist the poisonous gas that falls from the sky, hahahaha..."

Matsui Shunsho excitedly ordered his men to open the baffle at the entrance of the cave, and a group of Japanese soldiers quickly crawled out.

"Let us witness with our own eyes how the Sharp Knife Group was destroyed, hahahaha---"

"cough!"

As soon as Matsui Shunxiang climbed out of the cave, his laughter stopped abruptly. Then he looked up at the sky with horror and couldn't help coughing violently.

Then, the corners of his mouth began to twitch constantly, and his face was full of despair.

"It's over! It's all over this time! Zheng Kaixuan's spearhead team is invincible. Yamamoto Ikki, Shinozuka Yoshio, I've been tricked by you..."

All the Japanese soldiers standing behind Matsui Shunsho were as shocked and frightened as Matsui Shunsho.

In the sky, a huge Japanese bomber was engulfed in flames and was falling rapidly towards the ground like a meteor.

"boom!"

The Japanese bomber crashed to the ground in the blink of an eye, and the fuselage disintegrated instantly, smashed into pieces by the huge impact force.

Then came the second and third.

In just a few breaths, Matsui Shunsho's last trump card turned into dust!

In fact, Zheng Kaixuan had been on guard against the Japanese planes.

As he often used small planes in combat, he naturally understood the importance of air superiority.

In the artillery battalion, four tanks had been patrolling back and forth on a dirt road a few kilometers away and had not participated in any battle until the Japanese bombers arrived.

These four tanks were prepared to guard against the Japanese air force.

Three Type 1 anti-aircraft tanks and one Type 14 Triumph large-caliber anti-aircraft mortar.

This time when Zheng Kaixuan came to southeastern Shanxi, he brought six Type 1 anti-aircraft machine guns captured from the Japanese.

He personally assembled these anti-aircraft machine guns onto the Triumph light tank, and he also converted all of them to belt-fed ammunition.

Each machine gun is equipped with a 12.7-round mm diameter ammunition belt.

Unlike the Triumph anti-aircraft machine gun, these modified self-propelled anti-aircraft machine guns have low rate of fire, range, and altitude.

Moreover, the material of the barrel cannot withstand the rapid firing of a large number of bullets.

Zheng Kaixuan estimated that these anti-aircraft machine guns would be scrapped if they could not fire through a thousand rounds of ammunition.

In fact, the Japanese bomber pilots also discovered these anti-aircraft machine guns when they dropped poison gas bombs.

These anti-aircraft machine guns have a short range, slow rate of fire, and poor accuracy.

The combat-experienced Japanese bomber pilots did not take these machine guns seriously at all.

They simply changed the bombing method to high-altitude dropping, and these machine guns were helpless against the Japanese planes.

However, Zheng Kaixuan never expected to shoot down the plane with these broken things from the beginning.

When the Japanese pilots were paralyzed and thought that the spearhead regiment's air defense capability was just so-so, the real trump card in Zheng Kaixuan's hand, the 14-level Triumph anti-aircraft gun, appeared!