The Sui army's northern front was making rapid progress, and its eastern front was also unstoppable.
Although the east line is close to the river, the environment is much stronger than that of the north. The so-called Parrot Island is a sandbank on the river, close to Hanyang City. On the eastern defense line, the Tang army relied on Parrot Island and the river beach behind it. They deployed three thousand troops, one trench and three camps.
Parrot Island hangs on the river, and it is also a small island impacted by sand. It is surrounded by tidal flats on all sides, and large ships cannot approach it. When the boat landed, it had to cross the difficult shore, and then break through the Tang army's crossbow formation without defense before launching an attack on the center of the island.
So this battle is not easy to fight.
Wang Zengbian was an expert in water warfare. After taking a boat to observe around Parrot Island, he realized the difficulty of this battle. If they were to storm Youtiaozhoutou, the Sui army would probably suffer immeasurable casualties.
"During the Southern Song Dynasty, Shen Youzhi besieged Yingcheng (today's Wuchang District, Hubei Province). Yingcheng guard Liu Shilong sent people to fight west of Parrot Island. Shen Youzhi built a long siege outside Parrot Island and attacked day and night, three times before and after. For more than ten days, it could not be broken, and finally ended up defeated and dead."
Although more than a hundred years later, the terrain of Parrot Island has been greatly changed by the impact of the river. But with Shen Youzhi's previous lesson, the Sui army really didn't dare to attack rashly.
At this time, Cheng Mingzhen said: "The biggest barrier for the garrison of Parrot Island is the outer area. It is difficult to walk through the mud and is inconvenient to attack. The Tang army established a position on the beach and attacked us with powerful crossbows, making it extremely difficult for our army to break through the obstruction. In this case , if our army can place heavy weapons in a position where they can attack the Tang army, we can gain an advantage in the bow and crossbow battle and defeat the thieves."
Everyone could hear it but said nothing.
The principle is this, but the problem is how to deploy heavy weapons on the forward positions.
Seeing Cheng Mingzhen speak, Wang Zengbian tried to ask: "Mingzhen, do you have a way to adjust the heavy weapons?"
Cheng Mingzhen replied: "I just have an idea, but I don't know if it is possible."
Wang Zengbian was overjoyed when he saw that Cheng Mingzhen really had a way, and immediately asked: "Mingzhen, let's talk about it. If it works, let's try it."
Cheng Mingzhen stepped forward and picked up a charcoal pen and placed it on the map. The charcoal pen was placed just above the river. One end was Parrot Island and the other end was on the other side of the river. This time 7hua n.com Zhang Si
Wang Zengbian was a little puzzled when he saw this.
Cheng Mingzhen said: "Parrot Island is isolated on the river and has no support on all sides, so it is inconvenient to land. But if our army builds a pontoon bridge between Parrot Island and the east bank of the river, what would the general manager think?"
Wang Zengbian was stunned for a moment and murmured: "Ming Zhen, the east and west banks of the river are thousands of steps apart. There is really no precedent for building a pontoon bridge over such a long distance."
It was Cheng Mingzhen who brought him up. Wang Zengbian couldn't say anything to him. If it had been someone else, he would have scolded him long ago.
Building a bridge over the Yangtze River is a joke.
Cheng Mingzhen said: "It's not without precedent. When Li Yuan broke through the siege in Guanzhong, he built a pontoon bridge on the Wei River and broke out."
Wang Zengbian shook his head and said: "There is no comparison. Although I have never seen how wide the Wei River is, I guess it will take two hundred steps. But from Parrot Island to the other side of the river, it must be a thousand steps."
"The difference is that the floating bridge is longer."
Seeing that Cheng Mingzhen couldn't be persuaded, Wang Zengbian said, "Mingzhen, if you have any good ideas, please tell me. I think you already have a plan in mind, don't irritate me anymore."
At this time, Cheng Mingzhen also said: "The manager should know about the iron cable across the river. Since the iron cable can be used to connect the two sides, we can use the iron cable to build a pontoon bridge."
River-blocking iron cables usually weigh tens of thousands of kilograms. However, since Wu State blocked the river, it has become an important weapon in water warfare. The Western Expedition of the Sui Dynasty was well prepared. Huang Weiyang had ten iron ropes cast, some long and some short, and brought them with the army.
"The two banks are connected with iron cables on the top, and warships are laid on the bottom to support the iron cables. On top of the iron cables, wooden boards are laid. In this way, catapults, bed crossbows and other materials from the east bank of the river are continuously transported to Parrot Island.
Isn¡¯t there no road to Parrot Island? Let's pave a path with wooden planks straight to the beach, and let the catapult follow the wooden plank road directly to the front. "
Wang Zengbian was shocked by Cheng Mingzhen's plan.
But I have to admit that this is a good strategy and a real conspiracy. As long as the Tang Army's long-range troops can be suppressed, the Tang Army on Parrot Island will be finished. After all, there are only two thousand Tang troops on Parrot Island. Once the two sides fight hand-to-hand, they will be invincible.
Wang Zengbian is also worried about the situation in Parrot Island.?How to set up columns.
Cheng Mingzhen then suggested that two large ships, loaded with huge rocks, be sent to Parrot Island and then run aground. This fully loaded ship weighs hundreds of thousands of pounds and is enough to support one side of the ship.
Cheng Mingzhen also suggested that a row of pillars should be built on the outside of the ship, deep into the soil, and exposed one foot high to act as a fence to completely block the ship's retreat.
Hearing Cheng Mingzhen¡¯s careful plan, Wang Zengbian clapped his hands, sighed and applauded loudly.
So the Sui army spent the night cutting wood and making boards on the east bank of the river. Even if there were not enough wooden boards, they would pluck the wooden doors of the people in Jiangxia City. Later, they even plucked several inner city gates for use. The entire Jiangxia City has become a city where doors are not closed at night.
Although the amount of work is huge, we have to admit that Cheng Mingzhen¡¯s plan is very effective.
Although the pontoon is constantly swaying on the river, walking on it is trembling and thrilling. But overnight, hundreds of catapults were transported along this pontoon to Parrot Island.
When the next day dawned, the Tang army looked up and saw rows of catapults surging forward. They were so frightened that they were dumbfounded.
The Tang army immediately organized troops and tried to destroy the catapults and the stranded ships. But they have lost the opportunity and can no longer crack these hard bones.
Cheng Mingzhen led two thousand elites to set up defenses in front of the position.
Move forward piece by piece, paving a path.
All the Tang troops just watched the Sui troops move from far to near, and the huge catapult moved in front of them little by little.
Rows of catapults sounded like thunder, and ballistae roared like thunder. The entire sky was obscured by boulders and crossbows, and the entire world seemed to be meteorites falling from the broken sky.
For Tang Jun, everything was destroyed so suddenly and violently.
Until the Sui army launched the final attack, the Tang army did not understand what happened. Isn¡¯t it said that the Parrot Island is so dangerous that ghosts and gods can¡¯t defeat it?
The Sui army used a whole day to completely destroy the resistance of the Tang army and occupy Parrot Island. Zhi Da Zhi Xiao
But the Sui army did not stop and continued to attack the river beach.
For Hanyang River Beach, Parrot Island is the biggest and only barrier. Without Parrot Island, Hanyang River Beach is just a woman hanging with a few pieces of cloth.
Soon, the Tang army¡¯s river beach position also fell.
At this point, except for Linzhang Mountain in the south, there is no position outside the entire Hanyang City