The 20 mm rapid-fire gun on the heavy armored vehicle is not very powerful, and it is still very difficult to destroy the street fort, but it is different to fire the cannon at the shooting hole, the shell directly passes through the shooting hole and explodes in the street fort, and the street fort is not much damaged, and the Japanese soldiers inside are basically either dead or wounded. Seeing that the shot was effective, the heavy armored vehicle turned its gun and aimed it at another street fort.

A few minutes later, the two street forts were all silent, under the suppression of armored vehicles and several heavy machine guns in the hands of the fighters behind, the fighters of the assault battalion slowly approached the second line of defense, and the soldiers threw a round of grenades and bullets at the rear of the defense line more than 20 meters away from the second line of defense, and in the explosion of the grenades and bullets, the soldiers rushed into the second line of defense in one go.

By noon, the 572nd Regiment and the armored vehicles covered each other, cooperated with each other to break through several lines of defense of the Japanese army, and attacked outside the wall of the Japanese headquarters in one go. At this time, several other regiments also pressed forward step by step, driving the Japanese army into the headquarters, and now the four infantry regiments of the 93rd Division and a guard battalion of more than 4,000 soldiers surrounded the Japanese headquarters on all sides.

Here in the 572nd Regiment on the front, twenty-eight armored vehicles and twenty-four field guns were also concentrated. A soldier in charge of reconnaissance reported to Huanggang that more than 1,600 Japanese troops, including the headquarters of the 30th Independent Mixed Brigade, were concentrated in the Japanese headquarters, and more than 10 mortars were placed in the open space in the courtyard.

Huang Gang stood on a high place and observed the Japanese headquarters in front of him. This Japanese headquarters had a wall three meters high, and Japanese soldiers erected weapons on top of the wall. The wall had only one gate, facing the 572nd Regiment, and at the gate there were curved sandbag fortifications and triangular horses with barbed wire. The sandbag fortifications had two heavy machine guns afterwards to block the path of the attack.

The main body of the headquarters is a three-story building with a suspicious earth structure, which is much larger than the three-story western-style building that was conquered yesterday. Through the telescope, you can see the muzzle of a black hole sticking out of the window of the building. It was not very difficult to conquer this headquarters, but it was difficult to overcome this Japanese headquarters with minimal casualties.

Huang Gang was thinking about how to attack while observing, and after a while, Huang Gang put down his binoculars and said to the guards beside him: "Pass my order, the heavy artillery regiment will first use field artillery to bombard the target for twenty minutes, and it will blow up the wall and hit the Japanese troops in the courtyard. The guard answered, turned around and went to convey Huanggang's order to the heavy artillery regiment.

It didn't take long for Huanggang to wait, the shelling of the heavy artillery regiment began, and after only two rounds of shelling, the walls of the Japanese headquarters collapsed in many places, and in the smoke and dust, the yellow figures of the Japanese army were scurrying around, and some soldiers in yellow clothes could be faintly seen being pressed under the collapsed walls. After the wall collapsed, artillery fire extended into the courtyard.

The Japanese troops in the courtyard were also chaotic under the bombardment of artillery fire, some were looking for hiding places everywhere, some fled to the building in a panic, some were lying on the ground and resigned themselves to fate, some were hiding behind sandbag bunkers and shivering, and more were the mutilated corpses lying in various places by the shells. Major General Masao Takahashi was also on the third floor of the headquarters at this time, looking at the smoke of the explosion outside the office window, listening to the series of explosions, feeling the trembling under his feet, and the grief and indignation in his heart arose.

Major General Takahashi Masao asked aloud in his heart: Why did a brigade of the dignified Imperial Japanese Army, guarding a city, not hold out for even two days? Why did the Chinese army, which had always had no combat effectiveness and no decent weapons, suddenly have very few heavy artillery and chariots even in the Great Japanese Imperial Army? Why were the flying units of the always invincible Imperial Army unable to deal with the Chinese troops in front of them? Why was the combat effectiveness of the Chinese army so strong? But no one could give him an answer.

The shelling outside the window stopped, and after a while, a Nakasa ran into the office dressed in smoke and reported: "Report to Your Excellency, Brigade Commander, that the Chinese army, under the cover of chariots, has launched an attack on our position. When Major General Takahashi heard this, he shouted, "Hold your position, order the soldiers to hold your position at any cost!" The Nakasa Masao replied loudly, "Hey!" and turned and ran out.

Outside the headquarters, the contingent of two heavy armored vehicles and four light armored vehicles as the cover and the second battalion of the 572nd Regiment as the assault battalion was advancing towards the Japanese headquarters step by step. The walls of the headquarters were so dry and porous that the heavy armored vehicles did not need to fire at all, and the walls were completely collapsed by just ramming. As soon as the wall fell, the various weapons in the windows of the building began to shoot wildly.

There were armored vehicles in front of them, and although the fighters of the assault battalion in the rear were also shot and fell, the overall casualties were not large. The Japanese fired condescendingly from the window, and there were always fighters in the assault battalion who were not covered by armored vehicles who were shot. However, the situation improved greatly after the heavy armored vehicles used vehicle-mounted artillery to knock out several Japanese machine-gun fire points in the window, and together with the light armored vehicles behind, they kept blocking and suppressing the Japanese firepower with vehicle-mounted heavy machine guns.

The armored vehicle had already broken into the courtyard in front of the building, and there were still many Japanese soldiers in the courtyard who had escaped the shelling and were desperately fighting back. Others suddenly burst out of the corner with explosives, packs or clusters* in the hope of blowing up the incoming armored vehicles. After a light armored vehicle was blown up by Japanese personnel and shells, the assault battalion began to rush forward and take on the task of protecting the armored vehicle.

The proportion of assault battalions, assault guns, and light machine guns accounted for a small half, and in such a assault battle, these automatic weapons had a great advantage, and the remaining Japanese soldiers in the courtyard could not withstand the assault of the assault battalion officers and men armed with automatic weapons, and they were soon killed and wounded. A small number of Japanese troops hiding behind sandbag bunkers were almost wiped out by rapid-fire guns and heavy machine guns on armored vehicles.

The assault battalion attacked for more than an hour, and the Japanese troops outside the building had been basically cleared, and now only the Japanese troops who had retreated into the building were still desperately resisting. After the armored car blasted open the gate of the building, it also stopped in the courtyard, and only used machine guns to strike at the Japanese troops who appeared at the window, and the work of destroying the Japanese troops in the building could only be handed over to the assault battalion.

Li Chao, the commander of the assault battalion, rushed to the side of the exploded gate, made a gesture to the comrades on the other side of the gate, and then took out a grenade and bullet from his body, and the comrades on the opposite side did the same. Almost at the same time, several grenades and bullets were thrown into the building, and there was an explosion mixed with the screams of Japanese soldiers.

Approaching the thick smoke rising from the gate, Li Chao and his comrades-in-arms rushed into the building with a rush and a sharp gun. Immediately after that, there were bursts of gunfire in the building. For more than an hour, gunfire continued in the building, from the first floor to the second floor and finally to the third floor. By the time the gunfire had stopped, it was four o'clock in the afternoon. During the assault camp's assault, Huang Gang always stayed nervously on the front line, looking at his watch from time to time.

The gunfire completely stopped, and a blue sky and white sun flag* rose on the roof of the building, and when it fluttered in the wind, the cheers of the soldiers everywhere rang out like thunder, and only then did a smile appear on Huang Gang's face. After a while, Li Chao, the commander of the assault battalion, ran in front of Huanggang, still with a strong smell of gunsmoke. After Li Chao stood up and saluted in front of Huanggang, he shouted loudly: "Report to the brigade seat, the assault battalion has completed its mission, successfully occupied the Japanese headquarters building, and killed Major General Takahashi Masao, commander of the 30th Brigade of the Japanese Army's independent mixed brigade!

Huang Gang returned the military salute, nodded approvingly, and then said: "Okay, Battalion Commander Li, your assault battalion has successfully completed its mission, and it is all good! I will ask for credit for your assault battalion at my division and military seat! Now you all withdraw and rest, and I will let other troops take over you." Li Chao replied excitedly: "Yes, Brigade!" and then saluted and turned to leave.

Huang Gang turned to Li Jieli, the commander of the 572nd Regiment, and said: "Jieli, arrange for the troops to replace the second battalion, clean up the battlefield as a whole, and clear the remnants of the Japanese army in the city, and I will report to the division." The troops in the city began to clean up the battlefield according to Huang Gang's orders, organize patrols and guards, and Huang Gang boarded a light armored car and drove towards Li Yuanhong outside the city.

Li Yuanhong was very anxious outside the city, listening to the sound of guns and cannons in the city, Li Yuanhong had to enter the city in person several times, but Wu Jianzhou and others around him stopped Li Yuanhong from entering the city on the grounds that there was a fierce battle in the city and it was unsafe. Eventually, the gunfire in the city quieted down, and finally everything fell silent. Li Yuanhong couldn't hold back any longer, jumped on a command car and ordered the driver to drive into the city.

As soon as the command vehicle crossed the iron bridge, Huanggang's light armored car approached, and the two vehicles stopped when they approached, and both Huanggang and Li Yuanhong got out of the car. Huang Gang walked a few steps in front of Li Yuanhong, stood up and saluted, and then said loudly: "Report to the division, Langshan Castle has been completely occupied by our army, completely annihilated the Japanese army and independently mixed into the 30th Brigade, and killed the commander of the Japanese brigade, Major General Takahashi Masao! ”

After listening to Huanggang's report, Li Yuanhong said happily: "Great, I will report to the military seat immediately, and now everyone will enter the city." Wang Haitao was sitting in the office of the Zhennanguan Military Department, looking at the map of Vietnam, studying how to attack below, when a voice came from the door: "Report!" Wang Haitao shouted first: "Come in." Then he looked up, and it turned out to be a confidential officer standing in the doorway with a telegram clip.

The confidential officer strode to Wang Haitao's desk, stood up and saluted, and said: "Report to the military seat, Li Yuanhong, the commander of the 93rd Division, is in an urgent telegram!" Wang Haitao took the telegram and looked at it at a glance. After reading it, he excitedly shouted: "Great!" and then said to the confidential officer: "Call back to Division Commander Li: Division Commander Li Yuanhong, congratulations to your unit on the successful capture of Lang Son City, which has made a good start for our army's entire offensive operation, and now orders your unit to rest and stand by in Lang Son City, and the military headquarters and the 211th Division will leave Zhennan Pass tomorrow morning and march towards Lang Son City. The confidential officer recorded the contents of Wang Haitao's telegram, stood up and saluted, and then turned around and exited Wang Haitao's office.