He quietly stayed in the trench under the tree roots.
Liu Yu watched the Japanese Heavy Artillery Brigade quietly as they slowly built up their artillery positions.
This was a rather complicated process.
The ground was leveled and the soil on the ground was tamped. Then, the railway was laid from the side of the road to the camp.
This required more than 3,000 Japanese to complete. In the middle of winter, the Japanese who fought were soon drenched in sweat.
On the side of the road, the other Japanese had also laid down a small section of the railway and started assembling heavy artillery.
Those 150mm howitzers naturally didn't need to be so troublesome.
However, the 240mm and 305mm cannons were much more troublesome.
Some trucks even needed to add a trailer to the back of the truck in order to transport these heavy barrels.
However, in order to build these heavy cannons in a field environment, the Japanese Heavy Artillery Squadron also had cranes with them.
If it was a 240mm cannon barrel, it would be fine. However, a 305mm howitzer barrel would require four cranes to operate at the same time.
Even the rotating and moving base of the cannon alone weighed more than ten tons.
However, it had to be said that the quality of the Japanese artillery was quite high.
The complicated cannons gradually rose up in an orderly manner.
At the same time, some of the Japanese who were building the artillery positions were also digging for cover, which was obviously a place to place the artillery shells.
The bunker was not dug underground because once it was dug underground, although it was safe, it would not be easy for the artillery to push it to the side of the cannon.
The bunker was built with thick soil, and there was a slight downward slope that led to the ammunition depot. The slight slope allowed the shells to be pushed up more easily. Then, along the long railway, the shells were transported to the side of the cannon to be loaded.
The big tree that Liu Yu was hiding in was cut down to reinforce the ammunition depot.
It was not just the big tree that Liu Yu was hiding. All the other trees nearby had been cut down as well. Some were used as temporary railway ties.
The place where Liu Yu was hiding became the core of the Japanese's artillery.
Tina couldn't help but smile.
Last night, after taking out two Japanese infantry units, he had specially brought elite snipers over and made a lot of preparations.
Although the sniper team was hiding in the periphery under his orders, the place he chose was also the center of the artillery position.
This was also the harvest that Liu Yu had carefully prepared.
Previously, Liu Yu had two choices. One was to go to Song Jiang to assist the Northeast Army's 67th Army in defending Song Jiang.
However, when he thought about the firepower of the Japanese, the 6th division, and the 18th division, even if he went, he wouldn't be able to help the 67th division defend for a day.
After all, the Japanese's Heavy Artillery Brigade and the firepower of the Field Heavy Artillery Regiment could easily destroy the defensive positions of the 67th Division.
Instead of struggling to survive in the city and the 67th Division, it would be better to think of a way to get rid of the Japanese's Heavy Artillery Squadron.
The Japanese army had worked hard for decades, but they only managed to create six Heavy Artillery Brigade regiments. To the Japanese, losing one Heavy Artillery Brigade was more painful than losing two divisions.
Last night, Liu Yu destroyed the Heavy Artillery Regiment of the 6th Division. Today, he blew up the Moonwell Bridge so that the Heavy Artillery Regiment would not be able to build artillery positions in the places they chose.
This was not a complicated design at all. A simple and effective design was often the most effective.
Everything went according to Tina's plan.
Over at Songjiang City, Liu Yu could only pray that the 67th Division would be more powerful.
In history, the 67th Division was wiped out by the Japanese in just one day.
About two hours later, Tina received a message from the sniper team.
The news was transmitted through the walkie-talkie that Liu Yu had dropped earlier.
This walkie-talkie, whether it was the frequency or the frequency, was created by Liu Yu alone. Naturally, the Japanese did not know about it.
Through these walkie-talkies, Liu Yu could quickly find out what was going on outside even though he was hidden in the pit.
At this moment, the Japanese's 6th division had already surrounded Songjiang City. However, because there were no cannons, the Japanese's 6th division did not launch an attack on Songjiang City.
Instead, they began to persuade the Japanese to surrender. However, the 67th Army held fast to the four walls of Songjiang City and was unmoved by the Japanese's enticement.
The Northeastern Army had a blood feud with the Japanese. Every single one of them wanted to beat up the Northeastern soldiers back to their hometown. Surrendering was basically impossible.
Although the 6th division did not have any heavy weapons, they still had many small-caliber cannons and mortars.
At the same time, under the cover of the artillery fire, the troops of the Sixth Division were digging up offensive positions in the east, west, and south directions outside Song Jiang City.
Another sniper team also sent a report. It was the Japanese's Eighteenth Division. It was estimated that they were preparing to bypass Song Jiang and directly attack the retreating Fire Country's army.
Obviously, the Japanese could not wait to capture Song Jiang. The 18th Division bypassed Song Jiang, crossed the Huangpu River, and went straight to Shuzhou.
Liu Yu then learned that the Japanese had already conquered Baoshan County, which was on the Yangtze River. They had also conquered major cities such as Jiangnan and Jiading. They had already begun to infiltrate Jinling.
However, because Song Jiang's Sixth Division was late by more than a day, the hundreds of thousands of Yan Huang troops that should have been surrounded had basically completed their retreat.
There were only a few troops left to block the Japanese. They were basically a miscellaneous army, just like the 67th Army in Song Jiang.
For this reason, apart from the four warehouses that were still being guarded, the Yan Huang army in Shanghai was basically all controlled by the Japanese.
Tina could only sigh helplessly.
When the Independent Regiment first received the order to go to Jinling to rest, Liu Yu had already thought of this.
Vice-chancellor Jiang, who only cared about the direct troops, was truly a little disappointing.
This book comes from：m.funovel.com。