The pontoon bridge was Meng Xiang's idea, and he came up with the idea when Li Ting and others couldn't contact more ships.

For the people of this era, the Yangtze River is a moat, and it is common for later generations to fly on both sides of the Yangtze River. The only problem was the length of the pontoon. As a novice, Meng Xiang doesn't know how difficult it is, but no matter what, it is possible to succeed if he does it.

There are already many practices in European and American countries where sapper bridges are built, and cheap production at the base provides the greatest convenience. Several engineers also calculated various conditions, structure, hydrology, climate and other elements have gone through a lot of deduction, and determined that God bless the night on the 17th, the weather is acceptable, and then there is a comprehensive action.

Through the equipment center and the tank factory, pontoon bridges and other equipment can be produced, but it is troublesome to transport equipment and establish relations with the defenders along the way and on the north bank of the Yangtze River.

It is also very convenient to transport equipment, with the produced trucks, some small fish and shrimp along the way, Han Fuyu's handwritten official documents, and the shock of the three armored vehicles accompanying the team, there is no big trouble.

It's just that some of the rules along the way are a lot troublesome and delayed for a while.

On the north bank of the Yangtze River, relying on the excellent performance in the retreat from Xiaguan, Li Ting and others opened up the relationship with Hu Zongnan and recognized the rescue operation. It's just that the specifics were kept secret until the engineer battalion was ready for action, and it was not officially proposed. At this time, there were a lot of annihilations, and a lot of intelligence in the central army has always been known for being funnels, so they have to be guarded against.

In order to ensure a smooth retreat, the upper and lower reaches of the Yangtze River in the Shogunate Mountain were at key points, and a total of 15 155 mm caliber guns were set up by Meng Xiang, and a lot of 40 mm anti-aircraft guns were arranged. The remaining three torpedo boats of Wen Tianxiang's squadron were also equipped with anti-aircraft machine guns.

It was the gratuitous donation of these artillery pieces that made the operation quickly receive strong support from the national political axe.

However, it is very difficult to erect a pontoon bridge in half a day. In this regard, Mengxiang adopted a pre-installed solution. And according to the local conditions, it is carried out in two sections, one is from the south bank to Baguazhou, and the other is from Baguazhou to the north shore.

But without the skilled technology of the engineer battalion clone soldiers, and the construction machinery produced urgently, it would not have been possible to implement it smoothly. For this operation, Meng Xiang sent another battalion of clone soldiers, and when appropriate, he could also help out.

The mechanized construction accelerated the progress of the project, and with the help of 5,000 strong men on the other side, a miracle appeared in only half a day.

This pontoon bridge is not as strong as a regular bridge, but Meng Xiang only hopes that it can complete the retreat task for a day.

From time to time, Li Tiexia saw all kinds of miscellaneous structures such as door panels and beams under the bridge, and then looked at the simple protective ropes on both sides to prevent falling into the river and groping forward at night, and couldn't help but sigh in his heart.

With this rudimentary pontoon bridge, even if the river overflows the foot in some places, and only accommodates two people passing side by side in some places, the retreat is very fast when there are no objects or the like, only people pass through. Few of the captured and escorted civilians were old and weak, and the vast majority were able-bodied, and under the choice of life and death, they all accelerated the pace of evacuation.

"Time! I need more time! Huang Huamin said to Niu Yi, who was in charge of blocking the mission.

The other 1,000 men of the assault force need to hold back the reinforcements of the devils who have heard the news. Originally, this task was a bit difficult, but when Hu Heming, who was in charge of the blocking mission, saw the heavy weapons that Niu Yi and the others had put out, he couldn't help but be full of confidence.

Needless to say, 50 general-purpose machine guns are used, and 10 large-caliber anti-aircraft machine guns are used for flat fire, which is definitely a sharp weapon for killing people when they ensure a sufficient supply of ammunition.

The sudden surname of the raid made the devils who were carnival and proud of them a little confused for a while, but the well-trained devil army still reacted quickly and quickly organized people to counterattack this side. It's just that they thought it was just a little messy at first, after all, the guards were completely wiped out, and they didn't know much about the attacking personnel.

When a brigade that came over was sniped under heavy fire, they judged by the intensity of the fire that there was a large number of men who might be attacking.

What they didn't know was that this was the result of the fact that the more than 1,000 people who blocked the attack had only fired a small and a half heavy fire. According to the suggestion of Wei Hanchao, a staff officer of the major regiment recommended by Mao Sui among the prisoners of war, this move was to make the devils unclear about the specific situation, delay the time for the devils to reinforce, and leave more room for retreat.

The devils were fooled, and when the gradual refueling tactics didn't work, the devils finally realized that the attacking team on the opposite side was not a simple manpower.

But when the devils came to their senses, the blocking team had slowly withdrawn to the riverside and was ready to evacuate.

The muffled bombardment of 155-mm guns rang out from each of the upstream and downstream to block the attack on his ship. Once the fragile pontoon bridge is attacked, it is a big problem, and it will take time for the sappers to repair it.

Egami's patrol boat was entangled in three torpedo boats, and more than a dozen wooden boats with anti-aircraft machine guns also posed a certain threat to them. Even those anti-aircraft guns straightened their muzzles and began to bombard the river, and their ultra-high rate of fire was the most threatening.

Ships downstream were also extra cautious, and the sudden explosion of a patrol boat made them realize that there were mines laid here.

This is not produced by the base, when Meng Xiang lamented that there was no shipyard and could not produce mines, Jian Ba found a lot of mines in the pile of military supplies of the Central Army. Dozens of mines, hidden in advance, turned out to be effective. couldn't help but let Meng Xiang increase his enthusiasm for the construction of the shipyard afterwards.

Under the black light, he said that he couldn't figure out the truth and reality. There is not a trace of light on the entire pontoon, and under the light of the stars and with the help of protective ropes, and with the mutual support of the people in front and behind, it is not a problem to move forward. I don't know the details, I naturally don't know that there is such a trick.

"Oops! The devil's patrol boat leaked two. Liu Gongdi couldn't help shouting. After the vanguard proposed to compensate him for his two torpedo boats, he readily agreed to the rescue mission, and his affection for the robe also made him obliged. However, when he was faced with five or six patrol ships rushing up at high speed, the small boats behind him that had no speed were directly useless.

"Chase!" A torpedo boat chased after him first.

"And one more!" Liu Gongdi shouted loudly.

"The navy of the Chinese people?" Dongxiang Muxuan shook his head contemptuously.

"Be careful!" He Tian next to him shouted loudly, and a strange shrill sound came from the air.

"What? What is that? Togo muttered to himself in shock.

"It turned out to be an airplane! Airplanes flying at night! ”

"Boom!" A thud exploded next to the patrol boat.

"The engine is malfunctioning!" He Tian shouted in a panic.

Another chirp got closer and closer, and Togo shouted, "Get out of the way!" "There was another thud, this time closer. Patrol boats, which have lost most of their power, have become the best targets.

At the same time, Togo saw another patrol boat rushing through the blockade splashing countless sparks in the sound of a fighter's cannon, and finally under the bombardment of the aircraft accompanied by the roar, a bewitching flower of flame bloomed on the surface of the river with a bang.

"That looks like Stuka?" This is the last impression of Togo Hyunki.