By 1 April, the Japanese offensive was even more ferocious, and after the Japanese captured Nanchang on 27 March, they immediately repaired the Nanchang airport.

At present, Japanese planes fly from Nanchang at any time to bomb and strafe the positions of the two divisions of the 74th Army, and even supply lines, possible headquarters, and retreat routes.

Now that the Japanese army has opened up logistical supply lines, weapons and ammunition have been continuously transported to Gao'an, and the fire support time of artillery has exceeded an hour today.

By noon, the Japanese army's Sonoda detachment had approached only four kilometers from the county seat of Gao'an, and General Luo Zhuoyin, the former commander-in-chief of the enemy in the Ninth Theater, considered that Nanchang had been lost, and Gao'an was alone.

Moreover, the main force of the Japanese army is moving westward, and it is not cost-effective to consume the strategic reserve force of the 74th Army here, so he ordered Yu Jishi, the commander of the 74th Army, to ask him to abandon Gao'an City and avoid unnecessary losses.

On the afternoon of April 1, Commander Yu ordered the 51st Division to leave the 302nd and 305th regiments behind to cover the retreat of the main forces of the 51st and 57th divisions of the 74th Army to the south bank of the Jinjiang River, and asked the two regiments to hold back the Japanese army for three days.

After receiving the order, the 51st Division immediately arranged for the 301st and 306th regiments to retreat, and at the same time ordered the 302nd regiment to occupy the first line of Zhoujiashan and Gao'an counties.

Sangou's 305th Regiment occupied positions on the front line of Shiguling and Helin Mountain. This is again allowing the 305th Regiment to cover the retreat of the large army, which is a bit similar to the Wangting Blocking Battle that year.

But such a unit must be done by someone, and the 305th Regiment is indeed strong in combat, so it is often used to make such sacrifices, and military orders must be carried out.

What made everyone even more uncomfortable was that the engineer battalion of the 51st Division blew up the bridge over the Jinjiang River after the 57th Division withdrew to the south bank of the Jinjiang River.

Looking at the cold and biting river in winter, Sangou returned to the Yangtze River in a trance to defend Nanjing.

If they can't withstand the fierce offensive of the Japanese army, everyone will be driven down into the river in the same winter as the retreat from Nanjing, and they will either freeze to death or be shot, and Sangou can't help but shiver.

In order to gain time, when the 302nd Regiment was fighting fiercely with the Japanese army in Gao'an City, the 305th Regiment dug fortifications at Shiguling and Helin Mountain on the banks of the Jinjiang River.

The three battalions of the three dogs were in Shiguling, and finally arrived at a place with a bit of a mountain, where there were originally a little fortifications, but they were all built very sloppy.

Sangou personally took a sapper shovel, threw off his winter coat, rolled up his sleeves, and sweated with the soldiers to dig the bunker of the battalion headquarters, digging into the mountain, digging an "L" tunnel, hoping to resist the attack of the Japanese aerial bombs and field artillery.

This time, three infantry companies and nine platoons dug up octopus-like fortifications along the mountain, which was considered a nine-claw, and the fortifications of each platoon were machine-gun bunkers and mountain caves.

After digging for the whole night, and even borrowing grenade explosives to open the mountain, the 3rd Battalion dug several tunnel bunkers in the Shiguling mountain and used the mortars and heavy machine guns of the machine gun company as fortress bunkers.

At the same time, four or five winding ground trenches were dug at the foot of the mountain, with vertical and horizontal lines, interlaced with dogs' teeth, and the three dogs looked down at the camp headquarters of Shiguling, and their vision was very good, and they were very satisfied with the achievements and craftsmanship of the brothers.

During the training period in Changsha, Xiucai took everyone to practice shooting, the dog leg was a martial arts instructor, and he took everyone to constantly beat, and the bamboo pole was a machine gun technology instructor, and he took the machine gunner and mortar gunner all day long, drawing and writing, and even shooting guns.

Sangou is a tactical instructor and also a coach for fortifications, constantly dragging several infantry companies to carry out long-distance field training, and when they arrive at one place, they are divided into two sides, offensive and defensive, and conduct tactical training.

Whether it is the attacking side or the defending side, it is necessary to dig fortifications, and the three dogs will hold a tape measure, and in each fortification, they will measure various standards, and those who do not meet the standards will be punished.

Shengsheng trained hundreds of peasant children to be good at digging holes in the ground, and now except for a few company commanders, almost all platoon commanders can design reasonable fortifications according to the terrain on their own.

The mutual protection and communication at the junction of the positions are all very good, and in the telescope of the early morning time, the three dogs are like admiring a work of art, and they are satisfied with the steamed buns sent by the cooking class.

The three dogs faced the signal corps, gave the order to go down, each company and each platoon, arranged the observation post, and then entered the bunker to rest and sleep.

Now the third battalion, the first and second battalions of the 305th regiment, are very calm, and the devils have not been killed for the time being, and now it is the time for the 302nd regiment to be forced hard.

The 302nd Regiment was in Gao'an City, struggling to resist the Japanese attack, and from dawn in the morning, the Japanese artillery bombardment of Gao'an City did not stop, and the artillery roared all the time.

Here in Shiguling, you can also see Japanese planes, which are surrounding Gao'an City, constantly circling, and a series of aerial bombs are fired, which are so blown that the ground is shaken, and you can feel it even on this side of Shiguling.

After the Japanese artillery finished bombardment, the second and third groups of planes came to surround the position of the 302nd regiment, flying up and down, constantly diving and strafing.

The Japanese tanks took the lead, and the infantry behind followed, launching round after round of assault on Gao'an City.

In the face of such a ferocious offensive by the Japanese army, the 302nd Regiment had to shrink its forces and withdraw the troops arranged in the forward positions outside the city to the city.

The city wall of Gao'an was blown down, and the soldiers of the 302nd Regiment built temporary fortifications in the ruins, relying on stones and bricks as a breastwork wall to fight bravely against the Japanese army.

When the Japanese tanks rushed into the city, a large number of infantry acted as demomen, holding explosives and grenades, and went forward to blow up one after another.

In the evening, the east of Gao'an City had been completely broken through by the Japanese army, and now the 302nd Regiment was only guarding the southwest corner, but the street fighting continued, and from time to time there were cold guns and rapid machine guns, which sounded in the ruins of the wall.

The grenades threw and exploded to each other, blowing up a large number of civilian houses, and the two armies were at odds with each other, you have me, I have you, and they are still fighting desperately.

The 305th regiment looked anxious, but it couldn't leave its post without authorization, so it could only force itself to continue to sleep, sleep, and nourish its spirits.

Some troops are also reinforcing and adding some functions to the fortifications, such as bomb craters, sewers, and the roofs of communication trenches.

In the evening, the sound of guns and cannons in Gao'an City slowly fell silent, and the two sides ceased fire as if they had said yes, and they were probably tired, and the devils were also tired enough to choke and fight all day.

The 302nd Regiment made great efforts in Gao'an City, struggled to delay the Japanese army for a whole day, and bought valuable time for the main force of the 74th Army to withdraw to the south bank of the Jinjiang River and build positions and fortifications for the 305th Regiment.

In the evening, Chang Xiaode, the commander of the 302nd Regiment, received an order from his superiors to withdraw from Gao'an City at night and retreat behind the 305th Regiment's position on Shiguling Helin Mountain.

The 305th Regiment was responsible for covering the 302nd Regiment, and after the 302nd Regiment withdrew to the designated place, it rested in place, built a position by the river, and waited for the next order from the superiors.