Li Li understood that the current situation was already very dangerous, the north and south of the city gate cave were connected, the south had been broken through by the Japanese army, once the Japanese army could not stop the advance of the Japanese army, the soldiers in the north were attacked by the enemy, and they could not hold out for long, and the Japanese army would inevitably open up the north-south passage by the Japanese army, and the Japanese army would escape from here, so that the goal of destroying the main force of the Japanese Second Division could not be achieved, and the task of the guard brigade would fail.

Thinking of this, Li Li rushed into the city gate cave with dozens of soldiers around him. The soldiers who insisted on holding back the Japanese army in the city gate cave had already suffered casualties, and the Japanese army was constantly rushing in from the city gate hole. Li Li shouted: "Hit, hit hard!" The pistol in his hand opened fire at the Japanese soldiers who rushed up, and the soldiers around him also raised their weapons and opened fire on the Japanese soldiers who rushed over.

Seeing that the method was effective, the troops had broken into the castle gate cave, and excitedly came to Lieutenant General Maruyama Masao to report, Lieutenant General Maruyama Masao was also very happy, and was about to give the order to Nasu Yuo to recapture Zhennan Pass, when he heard a fierce gunfire not far behind him. The sound of gunfire made Lieutenant General Maruyama Masao and Nasu Yuo Osa's faces change.

At this time, the gunshots came from behind, for no other reason, it must have been the Chinese army that had caught up and exchanged fire with the troops behind. Maruyama Masao didn't care about retaking Zhennan Pass at this time, but ordered Nasu Yuo Daisa, so that his wing could quickly open the passage of the city gate hole, so that the troops could withdraw from the passage as soon as possible.

Nasu Yuo Osa also understood the seriousness of the matter, and when he returned to the wing, he sent an infantry brigade and asked the captain of the command to make sure that the passage was opened and that it was guarded. With such a narrow terrain in the city gate cave, and without any cover, both China and Japan have no tactics to speak of, and they can only fight with their lives at this time. The Japanese army continued to pour into the city gate, and Li Li's side was thin in numbers.

Tangshan Leopard also came to the southern city wall and personally commanded the soldiers to stop the Japanese charge with all their might. Tangshan Leopard heard the sound of gunfire in the distance, and knew that the pursuing troops were already exchanging fire with the main force of the Japanese army, and the more his side intercepted the Japanese army for a while, the greater the results of the pursuing troops. Under the command of Tangshan Leopard, the city walls were full of firepower, and dense bullets rained down on the attacking Japanese troops.

The Japanese army has attacked too many people, and now there are three infantry brigades charging towards Guanlou, and all the artillery of the Japanese army is desperate to hit the wall of Guanlou. The number of Li Li in the city gate cave became smaller and smaller, and the Japanese army desperately pushed the Type 92 infantry cannon up. The cannon was fired in the narrow city gate, and the flying shrapnel knocked down not only the Chinese soldiers, but also the Japanese soldiers who were injured by mistake.

Li Li was also hit by shrapnel, and the last two lightly wounded soldiers around him, seeing that they couldn't hold on any longer, threw the last few grenades and bullets on their bodies towards the Japanese army, and the grenades and bullets exploded to block the opportunity of the Japanese army, and Li Li, who was seriously injured, carried the seriously injured Li Li on his back, and retreated along the passage to the top of the gate. In the south, dozens of soldiers who were blocking the Japanese army in the north were attacked by the Japanese troops rushing in from the south.

The Japanese army finally opened the passage of Zhennan Pass, but if you want to pass through this passage smoothly, you must take Zhennan Pass, and its yard must also take the pass tower, otherwise the Chinese army guarding the pass tower will keep shooting down from the pass tower, so if you want to pass through the passage under the pass tower, you must pay a huge price. Lieutenant General Maruyama Masao commanded the remaining soldiers of the 56th Infantry Brigade to block the pursuers in the rear, and at the same time ordered Nasu Yuo Daisa to lead the 4th Wing to recapture the Guanlou.

On the upper floor, Tangshan Leopard saw Li Li, who was seriously injured and unconscious, and felt a pain in his heart, so he hurriedly asked the soldiers to send Li Li down to rescue, and led a part of the soldiers to guard the passage to prevent the Japanese army from rushing up to the gate. As soon as the passage was opened, the Japanese army's attack on Guanlou became even more frenzied, and the dense artillery fire turned the walls of Guanlou into hell. Fallen warriors were everywhere, and the walls had been stained red with blood.

At this time, Tang Weijian, the commander of the 544th Regiment, found Tangshan Leopard and said loudly: "Brigade Commander Tang, there are too many little Japanese, and the artillery fire is too fierce, the Guanlou can't hold it, let's withdraw first!" Tangshan Leopard's eyes glared and said: "If you want to withdraw, you will withdraw, I will die on this Guan Tower!" Tang Weijian said urgently: "Brigade Commander Tang, you calm down, you see how many people can still fight on the Guan Lou now? Do you want to fight all the people here?"

Tangshan Leopard was about to answer, when a mountain artillery shell landed near him, and the wave of anger knocked Tangshan Leopard, Tang Weijian, and several soldiers next to him to the ground. Tang Weijian got up and saw the Tangshan leopard lying to the side, blood flowing out of his head, and the person also fainted. Tang Weijian shouted loudly: "Someone, Brigade Commander Tang is injured, quickly carry Brigade Commander Tang down!"

Two fighters heard the shouts and ran over, one soldier picked up the Tangshan leopard on his back, and the other ran to the north with his support. Seeing that the Tangshan leopard was sent down, Tang Weijian then shouted loudly: "I order, all retreat north! Quickly!" The soldiers heard Tang Weijian's order, and quickly supported or carried their wounded comrades and retreated to the north.

After seeing that all the soldiers on the upper floor had retreated, Tang Weijian asked the soldiers guarding the entrance of the passage to throw more than ten grenades and bullets into the entrance of the passage, and then led them to quickly retreat. Soon after Tang Weijian withdrew, the soldiers of the Fourth Wing of the Japanese Army rushed up to the Guanlou along the passage, and when they wanted to rush to the north wall again, Tang Weijian built a blocking position between the north wall and the Guanlou.

Without the blocking from the upper floor, Lieutenant General Maruyama Masao immediately ordered the baggage wing, the mountain artillery wing, and the engineer wing to pass through the passage quickly, and the 29th Infantry Wing to block the pursuers at the end. At this time, the 211th Division also defeated the blockade of the 56th Brigade of the mixed brigade, and pressed down on Zhennan Pass behind the fleeing Japanese army. Although the Japanese army opened the passage of Zhennan Pass, the width of the passage was limited, and the Japanese troops could only pass through in turn, which was very time-consuming.

The four regiments of the 211th Division did not go far to the Zhennan Pass, and they encountered the resistance of the 29th Wing of the 2nd Division of the Japanese Army. In the darkness of the night, the 29th Wing blocked the not wide road with a heavy machine gun squadron, and the soldiers of the 1st Battalion of the 881st Regiment, which rushed to the forefront, were swept away at once. The battalion commander Tang Xi hurriedly ordered the troops to set up machine guns and return fire.

In the dark night, neither side knew how many troops the other side had, and the Japanese army was desperately trying to block the pursuit of the 211th Division to ensure that the main force of the 2nd Division and the division headquarters could withdraw smoothly. Several regiments of the 211th Division tried their best to bite the main force of the Japanese army and destroy as many living forces of the Japanese army as possible. Wei Erxi, commander of the 463rd Brigade, rushed to the front, observed the Japanese firepower, and immediately ordered the artillery behind to set up all mortars and bombard the Japanese troops on the opposite side.

As soon as the mortars rang out, the Japanese army couldn't bear any strength, and the 29th Wing also hurried over to block the pursuers, and there was no time to build fortifications, so the mortar bombardment was bombarded, and the casualties were immediately heavy. Fortunately, it was night, and the mortar bombardment was also very blind, just firing in the general direction, and many shells fell on the slopes on both sides of the hill where no one was.

The mountain road was tortuous, the Japanese army retreated a section, turned a corner, and set up machine guns again to block the pursuing Chinese troops, the 881st Regiment had just chased through the bend, the Japanese machine guns rang out again, and more than a dozen soldiers in front of them were shot and fell. In this way, the Japanese army retreated step by step, and the four regiments of the 211th Division pressed forward step by step, and at four o'clock in the morning, most of the troops of the Japanese Second Division withdrew through Zhennan Pass, and the 29th Wing also retreated to Guanxia. When the 881st Regiment chased after it, the 4th Wing of the Japanese Army on the upper floor opened fire.

Wei Erxi saw that the Guanguan Building in Zhennan had fallen into the hands of the Japanese army, and the casualties of the forced attack were too great at this time, so he ordered the troops to stop the pursuit, rest in place, and then sent a telegram to the division commander Tang Longzai to explain the situation. The information was reported by Tang Longzai to Wang Haitao and Su Zuxin, and when Wang Haitao heard that the Japanese army had reoccupied Zhennan Pass, his heart sank, and he couldn't help but worry about the situation of the Guard Brigade and the 544th Regiment.

After sending a telegram to the guard brigade to inquire about it, Wang Haitao couldn't sit still any longer, he asked Su Zuxin to stay in Pingxiang City, and he took a guard battalion and rushed to Zhennanguan overnight. Wang Haitao constantly overtook the pursuing troops along the way, first the self-propelled artillery regiment of the 211th Division, and then the light tank regiment, light armored vehicle regiment, and heavy armored vehicle regiment of the armored brigade. By the time Wang Haitao's team caught up with the troops of the 211th Division, the sky had already dawned.

Standing on a high place, Wang Haitao held a telescope to observe the situation of the Japanese troops on the upper floor of the opposite pass, and Wang Haitao had read the telegram replied by the guard brigade, and learned that the leopard in Tangshan was injured, the commander of the second guard regiment, Li Li, was seriously injured, the commander of the third regiment, Sun Linhai, was slightly injured, and the two regiments of the guard brigade lost most of them, and even the 544th regiment, which was reinforced, also lost one-third of its soldiers, Wang Haitao's anger rushed straight to his head.

After a few years of fighting, the guard brigade suffered such a big loss for the first time, these are the elites of the 90th Army, every officer and soldier is trained with great difficulty, Wang Haitao also complained a little about Tangshan Leopard at this time. However, the telegram also said that the Japanese army had only recaptured the Guanlou, and the city walls on the left and right sides of Zhennan Pass were still in the hands of the Oath Guard Brigade, and the Japanese army had only one infantry brigade on the Guanlou, and there was no large-caliber artillery.

Now Wang Haitao is determined to recapture Guanlou, Zhennan must be completely in his own hands, the Japanese army on Guanlou is condescending, with infantry to attack, the loss will be not small, Wang Haitao decided to wait for the armored brigade heavy armored vehicle regiment to come up, use heavy armored vehicles to cover the infantry to attack Guanlou. There are no large-caliber guns on the upper floors, and there will not be much loss of heavy armored vehicles.

As soon as the heavy armored vehicle regiment of the armored brigade arrived, the regiment commander Qian Dacheng was called to Wang Haitao. Wang Haitao said to Qian Dacheng: "Commander Qian, you send an armored company to cooperate with an infantry regiment to attack Guanlou, and the other armored vehicles will line up in two horizontal columns and use vehicle-mounted artillery to bombard the Japanese troops on Guanlou. After Qian Da was established, he replied loudly: "Yes, the armored regiment will guarantee to complete the mission!"