Ao Canghai organized men and horses in the front base, and advanced the front line of the confrontation to the front of the city wall of the Zhejiang and Fujian army, and made the final preparations for a direct attack on the city base, and there was no trick.

By the 17th, the Zhejiang-Fujian army built a long trench fence wall on the front of the east and west stoppers of the Jiahe River, and blocked the Shanxi River, which was more than 300 steps wide, with iron cables and wooden piles, and built a fence on the beachhead on both banks, with more than 20 bed crossbows and stone-throwing crossbows each, so as to prevent the warships of the Zhejiang-Fujian Navy from forcibly rushing up to break the iron cable of the Kaifeng River. In addition, a pontoon bridge was erected slightly upstream to connect the two sides of the river, completely cutting off the passage for the Zhejiang-Fujian army to enter the upper reaches of the river valley.

The tighter the battle, the more urgent the drums, the Zhejiang and Fujian army also nervously strengthened the fortifications in the two stops of the river, and after the wall, built more solid string towers with hard oak wood close to the city wall.

The tandem buildings are made of hardwood, whether it is the roof or the wings, they are directly nailed together with double logs, which is several times stronger than ordinary brick and wood enemy buildings. Under the blow of the heavy stone-throwing crossbow, the traditional brick and wood enemy tower was hit with a stone bullet weighing more than forty or fifty catties in front of it, and it was very likely that it would collapse at once, while the new one-style string building could take four or five consecutive blows without collapsing.

The method of building the string of buildings was first used in the Battle of Jinhai. After the loss of Jinhai, many of the defense techniques used by the Huaidong Army in Jinhai also spread.

War is always a direct driving force for technological progress on both sides of the world.

Over the years, the Zhejiang-Fujian Army and the Huaidong Army have been entangled with each other, and many of the tactics they have adopted have been directly learned from Huaidong. In the battles of Yongjia, Jin'an, and Dongyang, Huaidong intensively used the tactics of throwing stone-throwing crossbows and oil tanks, which also forced the Zhejiang-Fujian army to come up with more means of response. But in any case, the intensive use of stone-throwing crossbows in the world is still an effective means.

In order to prevent the city wall from collapsing the heavy stone-throwing crossbow of the Huaidong Army in the brutal siege war, Luxury Feixiong built a large number of wooden fence walls in the city, so that after the wall collapsed, the collapse could be closed with a wooden fence wall at any time, so that the Huaidong Army would not pour in from the collapse on a large scale.

Including the inner side of the city wall, the extravagant bear drove the people to dig the inner wall and build the inner moat wall. also learned the tactics of Lin tied to Shouyang Xin, leaving a secret door on the inner side of the city wall, so that he could counterattack by surprise......

Flying Bear is famous for his siege and land, but that doesn't mean he has weaknesses in defending the city.

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From the front of the two armies to the south, in a mountain col, the Huaidong Army was organizing hundreds of craftsmen to split bamboo cages, which were filled with gravel, each cage weighed more than 1,000 catties, and transported by horse-drawn cart to the river beach at the pass for later use.

Boulders are difficult to chisel and gravel is easy to take.

On the firewood paving stones, burn through the rain, the mountain stones will crack, and a heavy hammer can be applied to get a large basket of gravel. Previously, the Huaidong Army dug the Guanxi Ridge Road, and the accumulated gravel was also innumerable, as long as it was transported across the ridge, it could be used to build a dam.

When the spring water rises, the dam needs to be based on heavy objects. Gravel sinks into the river, easy to wash away the water flow, it is difficult to form a stable foundation, and it needs to be restrained by a bamboo cage to form a whole that weighs more than a thousand catties, so as to sink in the river and not be washed away.

The damming pass chosen by Ge Siyu was less than 200 steps wide with water at this time, but the river beach on both sides of the river stretched for more than three miles to connect to the slopes on both sides. The dam is built to intercept the water and accumulate to impact the large lake downstream to prevent congestion, and all the passes must be filled.

Ao Canghai mobilized nearly 20,000 soldiers and civilians in the front base to dig trenches and build walls in the front of the Zhejiang-Fujian army to defend the river, and as many as 30,000 soldiers and civilians gathered in Taowu Pass, almost all the manpower assembled in Guanxiling was used.

The river was dammed by rockfall, and the river beach was piled up as an embankment, and the Huaidong Army began to make every effort to build a dam to intercept the river in the upper reaches of Shanxi from mid-March.

****************

The siege became more and more urgent, and by 23 March, the Huaidong Army began to place heavy stone-throwing crossbows into the front, and for two days in a row, all kinds of stone bullets began to hit the front wall of the Jiahe defense blockade.

The initial firing and accuracy are not calibrated, and most of them are mainly small and medium-sized burnt mud bombs, which occasionally fall on the battle shed, shaking the roof of the shed, and the mud flies down, but it cannot form an effective killing effect on the defenders at the head of the city for the time being.

Even so, the guards also had trouble staying up at night. The Huaidong Army is only digging trenches and building fortifications in the direction of Jaws and Litang to confront each other, and the real bloody battle to be launched must be in the direction of Hengshan, and the Huaidong Army has been building momentum for so long, it will definitely not thunder loudly and rain little.

Now almost one-third of the Fujian soldiers stationed on the Hengshan defense line have experience in engaging with the Huaidong Army, and in their hearts, the impression of the Huaidong Army's invincibility is already quite deep.

The pressure on the heart of the extravagant bear is also extremely great, and he can't sleep at night.

The news of Lin Lian's arrival in Quzhou to supervise the war is not a secret, since the Battle of Jiyang, Extravagant Fei Xiong has never been in direct contact with Lin Lian.

Although the Flying Tiger lost its armor to the Huaidong Army on the Eastern Front, and finally died on the bank of the Yiyang River, it is not that the Flying Tiger is not good at fighting; Qin Zitan, who assisted Feihu in his early years, was also a leader in the younger generation of Eastern Fujian, but he could not escape the end of death.

Lin Tie's good fighting is not a fluke, nor is it just a strategy, the current advantage of the Huaidong Army is all-round. It is precisely because of this that the Flying Bear feels that the pressure on his body is like an impenetrable cage, making it difficult for him to struggle.

Deng Yu, Wang Hui and others will be in Hengshan, and there is a lot of pressure on their shoulders.

There is a military situation from Fuliang, Wang Hui can't see the figure of the luxury flying bear in the city, and after asking Suihu, he knows that the luxury flying bear and Deng Yu are going to the river beach.

The defense of the river stands, the south side is blocked by the Huaidong Army, but the inner river beach is still under the control of this side, after all, it is a stone's throw away from the west wall on the embankment, and the warships of the Zhejiang and Fujian naval forces are also stationed in the river, and the east and west bases are also connected by pontoon bridges.

Seeing that there was no sign of a large-scale attack by the Huaidong Army today, Wang Hui personally went out of the river beach to find Hao Fei Xiong and Deng Yu.

Wang Hui greeted him and said, "There is a military intelligence from Fuliang......

"Oh......" Fei Fei Xiong didn't answer the letter, and only listened to Wang Hui's dictation.

Han Li was besieged in the east of Qimen, and retreated to the Changhe River to form a formation and hold on to the river, worry-free for the time being, but found Huaidong hiding there between Fuliang and Beiji Mountain, an ambush army, about 1,000 people, between Fuliang and Qimen, in order to prevent Fuliang from coming to Han Li's aid by land. Su Tingzhan wanted to advance from the Suchang River and bring Han Li back! Wang Hui said.

"That's it!" Extravagant Flying Bear sighed lightly, it's not good news, it's bad news.

Although Han Li could keep the remnants and would not let the soldiers and horses that Huaidong infiltrated into Gandong eat them all, Su Tingzhan and Han Li were powerless to stop the deterioration of the situation in Gandong in Fuliang, which meant that the luxury family could only pin their last hope on the soldiers and horses of Beiyan to break through the western front and go south within this year!

In order to maintain the war readiness of Shangrao and Jiangzhou, the Zhejiang-Fujian army requisitioned and transferred all kinds of materials in Jiangxi, and completely no longer considered the people's ability to bear it, and the people's hearts have long been lost.

More importantly, with the surging civil unrest in various places, it has become difficult for the Zhejiang-Fujian army to requisition materials from Jiangxi, even if the Huaidong army's offensive can be repulsed, and then lead the troops to suppress the civil unrest in the hinterland, Jiangxi will be half-crippled, and it will be difficult for them to recuperate here.

Deng Yu was also speechless about Fuliang's military situation, Su Tingzhan also did his best in Fuliang, the situation is like this, not everyone can stand up and turn the tide!

Wang Hui saw the luxury flying bear and Deng Yu kicking the river mud on his boots, and asked, "The young marshal is still worried that the Huaidong army will move his hands and feet in the upper reaches of the fir water?" ”

Extravagant Feixiong nodded and said, "Today's soldiers guarding the river beach found that the stream had become turbid for a while, which was reassuring......

When Liu An'er besieged Xuzhou, he also dug embankments to flood Xuzhou, and Yue Lengqiu almost didn't survive.

When the Flying Bear built a defensive line in the lower reaches of the Shanxi River, it was not without considering that the Huaidong Army was likely to use the advantage of occupying the upper reaches of the Shanxi River to carry out a water attack; If he hadn't noticed this, he wouldn't have been a battle-hardened veteran.

However, in the face of the superior strength of the Huaidong Army, the choice that Luxury Feixiong can make is very limited.

Before the extravagant flying bear came to Shangrao to supervise the battle, the master of this side would be Deng Yu.

At that time, Deng Yu mainly guarded against the Huaidong Army approaching Shangrao from the two passes of the jaws and Litang, and mainly concentrated manpower and material resources to strengthen the Changshan defense line in the early stage, and overhauled the defense in the jaws and Litang, so as to become a solid trend.

Deng Yu also considered that the mountains of Guanxi Ridge were relatively thin, and there was no natural danger that birds could not cross, but limited to the resources in his hands, he could only occupy a private village on the periphery of Hengshan to garrison soldiers and horses to strengthen the control of the Shanxi River Valley.

Tang Fuguan's troops will attack Guanxiling, and then gather men and horses to dig a large-scale passage from Fenglinbu to Guanxiling. Seeing that it was too difficult to recapture Guanxi Ridge, he was forced to build a defensive line on the front of Hengshan and at the pass of the Shanxi River estuary.

Even considering that it is taboo to build a fort in the waterfront valley of the lower reaches of the river, there is no other option for the extravagant bear.

First, when he was building the Hengshan defense line, the south was already threatened by the Huaidong Army's garrison in Guanxiling; On the other hand, time is extremely limited, and the extravagant flying bear must build a defensive line on the front of Hengshan before the Huaidong Army opens through Guanxi Ridge and before a large number of soldiers and horses pass through Guanxi.

More importantly, in the face of the superior forces of the Huaidong Army, in the open Shanxi River Valley, which is easy to divide and encircle the superior forces of the Huaidong Army, the Luxury Feixiong can only use the Shanxi River waterway to connect the Jiahe River defense fortress with the Hengshan City behind it, so as to prevent the Huaidong Army from dividing and encircling the three main fortresses of the Hengshan defense line.

However, after the construction of the Jiahe River blockage, Huaidong occupies the upstream and has the possibility of damming and impounding water to directly impact the blockage, which is always a sharp sword hanging in the heart of the extravagant flying bear, making him sleepless at night.

With the advance of Huaidong soldiers and horses, the scouts of the Zhejiang-Fujian army have been unable to penetrate into the upper source of the Shanxi River, and the extravagant flying bear can only send cronies to keep an eye on the changes in the water of the Shanxi River. Today, the water in Shanxi suddenly became turbid for a period of time, which made Hao Feixiong almost burst, and he couldn't wait to inform Wang Hui, so he first went to see the water situation with Deng Yu, who was by his side at the time.

Wang Hui was a little unimpressed by the worry of the extravagant flying bear, and said: "The Huaidong army spent a huge amount of manpower and materials to build the front trenches under the city. Before the river was blocked, the terrain was open and it was a place where water was stored. The Huaidong Army really wants to build a dam and store water in the upper reaches to build a hanging lake, and once the lake is lagoon, the first thing to be hit is the front position of Huaidong. In other words, if I lead the soldiers and horses in Huaidong, there is no need to go to such great lengths, as long as we defend the front base and build a dam in the back, then we will have no other good strategy than to fight hard......"

Deng Yu shook his head and said, "Is it easy for the Huaidong Army to fight at the front base in the south?" If we can't build a front line, we can't talk about sabotaging its dam building – if that were the case, we would still have a choice......"

"Can you abandon the Yokoyama defensive line?" Wang Hui asked in surprise.