Due to the poor road from Zhennan Pass to Lang Son, early the next morning, two infantry regiments of the 211th Division first covered the engineer regiment and drove out of Zhennan Pass. The engineering regiment has a batch of construction machinery brought out by Wang Haitao from the munitions warehouse, and these construction machinery are in the hands of the engineering regiment, which played an important role in the last expedition to Burma, and this time they are responsible for the maintenance of the road. The road is a heavy responsibility.

The 93rd Division had the task of attacking the Japanese defense line in Lang Son, so the task of protecting the engineer regiment fell on the 211th Division, and at the same time, the armored brigade also sent a company of light armored vehicles to act together with the two infantry regiments of the 211th Division.

With the engineering engineering regiment, the progress of road construction is very fast, and they do not rebuild the road, but only repair the original road so that the heavy artillery of large armored vehicles and heavy artillery regiments can pass smoothly. In the process of building the road by the engineer regiment, the Japanese army also had a small reconnaissance force, but seeing that the Chinese army was large in number and very well protected, they did not dare to take action against the Chinese army.

However, the information was quickly sent to the headquarters of the Japanese 16th Army in Hanoi. After the 2nd Division, the main force of the 16th Army, withdrew to Hanoi, it rested on the spot and waited for the arrival of additional arms and soldiers from the country. Prior to that, only one and a half wings remained in the combat units of the 2nd Division. The commander of the division, Lieutenant General Maruyama Masao, transferred some of the soldiers from the engineer wing and the baggage wing to form two wings, but the combat effectiveness was much worse than before.

As for the independent mixed 56th Infantry Brigade, it basically became an empty shelf, and the brigade commander, Major General Kiichiro Matsui, also became a loner. Major General Kiichiro Matsui was very worried about whether the base camp would revoke the number of the 56th Brigade, or Lieutenant General Maruyama Masao, considering that the 56th Brigade was mixed mainly to cover his second division, and would suffer such a large loss, so he comforted Major General Matsui Kiichiro and said that he would clarify the situation with Commander Jun Imamura.

Sure enough, it didn't take long for the Southern Army Headquarters to transfer the order of the base camp, due to the limitation of the domestic replenishment of troops, the independent mixed 56th Brigade was not replenished, and the number was revoked, Major General Matsui Kiichiro served as the commander of the infantry brigade of the 2nd Division, and the remaining officers and soldiers were incorporated into the 16th Infantry Wing of the 2nd Division to be replenished, and the former Yang Officer still served as an officer at all levels of the 16th Infantry Wing. Only three of the captains of the 56th Brigade escaped and two died on the battlefield, but these three captains also became the subordinates of the commander of the 16th Infantry Wing, Aoki Kishimasa.

The 2nd Division now has to rest before it can enter the battle, so apart from the Akita Detachment stationed in the Langsan Line and the Kawaguchi Detachment stationed in Bac Giang City, the only troops that Commander Imamura can use immediately are the 30th Independent Mixed Brigade that has just arrived in Hanoi, and the 24th Independent Mixed Brigade in Burma and the 38th Division, which has just landed in Saigon, cannot be counted on for the time being.

The Chinese army had rushed across the Sino-Vietnamese border, and the information coming to the Lang Son defense line made Commander Imamura nervous. The Langsan defense line was dangerous, easy to defend and difficult to attack, and there were more than 6,000 troops of the Akita detachment stationed there, but Commander Imamura Jun was still not at ease, and directly photographed the telegram to Major General Yukio Akita, the commander of the Akita detachment.

Major General Yukio Akita was confident in holding the Lang Son defensive line, because he had three infantry brigades, a field artillery group, an independent heavy mortar group, an independent heavy machine gun group, and a rapid-fire artillery squadron specially assigned to him. The strength of the army has reached 8,000 people, which is basically equivalent to the strength of a brigade, as well as the dangerous terrain of Lang Son and the strong fortifications, which have given Major General Akita Yukio confidence.

It took the engineer regiment two days to repair the road to a point only three kilometers away from the Japanese army's forward defense line, because this was the limit, and when the last few kilometers of the road were repaired, it was even worse than the Japanese artillery bombardment. The Engineer Regiment completed its task and withdrew to Zhennan Pass together with the troops covering them. At this time, it was the turn of the 93rd Division to play. The reconnaissance regiment of the 93rd Division took up the task of reconnoitring forward, first leaving Zhennan Pass, and then the three regiments of the 277th Brigade left Zhennan Pass one after another.

Behind the 277th Brigade was the headquarters of the 93rd Division, which was protected by the divisional guard regiment. This was followed by the divisional armored regiment, the divisional heavy artillery regiment, and three infantry regiments of the 278th Brigade. After the 93rd Division was finished, it was the tank of the armored brigade and the 130 heavy cannon regiment of the heavy artillery brigade, and the 152 heavy howitzer and artillery regiment. The entire unit stretched out for several kilometers.

Wang Haitao stood on the tower of Zhennan Pass, looking at the troops out of the pass, and couldn't help but feel proud in his heart, the mighty and majestic team in front of him was formed little by little in this year. With this force, he has changed history, and now he has to fight in Vietnam. If he can completely drive the Japanese army out of Vietnam, he may not be able to be the master of Vietnam, and this will also avoid the rivalry between the Kuomintang and the Communist Party in the future. Wang Haitao has not revealed this matter to anyone, and even Tang Longzai and Sister Feng don't know Wang Haitao's thoughts.

Looking at the team in the distance, Tang Longzai beside Wang Haitao couldn't help it, and he asked Wang Haitao in a low voice: "Junzao, when will our division attack?" Wang Haitao glanced back at Tang Longzai and said: "What's the matter? Isn't your division just a battle? What are you anxious about?" Tang Longzai squeaked and said: "Junzai, this counterattack, our division just ran away with Little Japan, and there was not much of a big fight." ”

Wang Haitao listened to Tang Longzai's words and said: "You have to set your temperament, both Tang Yikuan and Li Yuanhong are stronger than you in this regard, think about it, can more than 30,000 people in two divisions be able to set up a terrain like the Langshan defense line? When the 93rd Division breaks through the Langshan defense line, there will be an open terrain at that time, and it will be the time for your two divisions to advance hand in hand. Got it?"

Tang Longzai understood, nodded with an embarrassed smile and said, "Understood, I'll go back to the division and tell those subordinates to listen, so that they can also settle down." As soon as Wang Haitao heard it, he knew that what Tang Longzai said today must have been poked out by his subordinates, so he said angrily: "Longzai, you also have to enlighten and enlighten your subordinates, so that they can also be stable, they are so impatient, what should the soldiers under him do?" Tang Longzai replied solemnly: "Yes, military seat! Wang Haitao glanced at Tang Longzai and didn't say anything.

The two heavy artillery regiments of the Heavy Artillery Brigade set up artillery positions in an open area 15 kilometers away from the defense line of Rilang Mountain, and the 93rd Division sent the 573rd Regiment to protect these two regiments of the Heavy Artillery Brigade. The 568th Regiment, which was in the vanguard, did not stop its advance until it was only one kilometer away from the forefront of the Japanese Lang Son defensive line, and arrived with the 568th Regiment a battalion of heavy armored vehicles belonging to the division's armored regiment.

Li Chunshan, commander of the 568th Regiment, and several battalion commanders under his command all came to the front of the team, raised their binoculars and observed the Japanese position. In front of them was the Kuoma Mountain position on the periphery of Langshan City, and the Kuoma Mountain position and the Bawai Mountain position next to it were the northern barrier of Langshan City, and the Japanese army had built layers of fortifications on the two mountains, with countless bunkers, hidden bunkers, trenches, and sandbag fortifications, which made Li Chunshan and them secretly surprised.

If you want to capture Lang Son City, you must first capture the two places of Kuma Mountain and Ba Wai Mountain, and only by capturing these two high places can it be possible to attack Lang Son City. Li Chunshan discussed with several battalion commanders and decided to attack the Kuoma Mountain Heights in front of him first. Therefore, Chen Qi, commander of the regiment's heavy fire battalion, first unfolded all the large and small caliber mortars equipped with the heavy fire battalion, and then mounted the heavy machine guns.

Attacking the Kuuma Mountain Heights would definitely not work with only these dozens of mortars of the 568th Regiment, and Li Chunshan immediately asked his superiors for artillery support from heavy artillery. The report was sent to the division commander Li Yuanhong, who did not say a word and ordered the division's heavy artillery regiment to support the infantry in attacking the Kuma Mountain Heights. The heavy artillery regiment of the 93rd Division has 18 German-made 15O-caliber heavy grenades and artillery pieces, 24 imitation German-made 75-caliber field guns, and 24 122-caliber howitzers and artillery guns of the 54-type type. The attack power is definitely not weak.

At this time, the artillery battalions of the heavy artillery regiment had set up artillery positions in different places according to the type of ground and the firing range of the artillery, and the 150 heavy howitzer and artillery battalion and the 75 caliber field artillery battalion that could most effectively support the 568th regiment were the 150 heavy howitzer and artillery battalion. After receiving Li Yuanhong's order, regiment commander Tang Weiren directly ordered the artillery to be fired to the two artillery battalions. Soon the shelling of the two artillery battalions began, and the shells flew directly to the high ground of Kuma Mountain, and with the explosion of the shells, bursts of gunpowder smoke rose up.

When the artillery shells had just advanced to the top of the mountain, the first battalion of the 568th Regiment, which had already been prepared, launched an attack on the Japanese defense line on the hill with a platoon as a unit under the leadership of battalion commander Feng Lisan. The beginning was quite smooth, but when it was only more than 100 meters away from the Japanese defense line halfway up the mountain, the machine gun fire point on the Japanese defense line opened fire, and at the same time, the Japanese soldiers also stuck their heads out of the trenches and opened fire down the mountain.

After the soldiers of the first battalion fell more than ten people, the other soldiers took advantage of the terrain to hide, and Li Chunshan immediately asked the mortars of the heavy fire battalion to strike at the Japanese machine-gun fire point, and the heavy machine guns also opened fire to suppress the Japanese troops in the trenches. The mortars came over and eliminated several points of machine-gun fire, but there were still several points of machine-gun fire, either they were well positioned and avoided mortar attacks, or the fortifications were so strong that they could not be touched at all.

However, the Japanese troops in the trenches had already been suppressed by heavy machine-gun fire, and the intensity and accuracy of the shooting were much worse, and the officers and men of the first battalion advanced several tens of meters upward. But after climbing a few tens of meters, the officers and men of the first battalion had to stop again. The Japanese had four heavy machine-gun fire points in the bunker, forming crossfire, completely blocking the way for the officers and men of the first battalion to advance.