Pubanjin has always been the most worried about Sima Lun and the weakest link in the entire Guanzhong defense system. This weakness is relative to the strength of the Bingzhou Army. In fact, from ancient times to the present, Pubanjin has been a natural danger, an almost insurmountable natural danger. Many troops have returned to Pubanjin without success. Since ancient times, this place has been a throat passage between Qin and Jin, and not many people have been able to enter Guanzhong from here.

But now with the improvement of the equipment level of the Bingzhou Army, this ferry that used to be known as the natural danger of the Yellow River has become vulnerable. The Bingzhou Army has shown its powerful crossing ability in the Baima River crossing. The Sima Army has been unable to find targeted and effective defense methods, so in front of the crossbow and stone casting car, the Sima Army could not find a way to crack it. When the natural danger of the Yellow River is no longer a natural danger, Pubanjin's defense naturally made people feel like they were in their throat.

There are dangerous passes in the Wu Pass of Tongguan, and there is nothing to worry about, but Pubanjin is different. If the Bingzhou army easily breaks through the Yellow River defense line, then the entire Guanzhong defense line will be useless, and the Bingzhou army will flow to Chang'an like a flood breaking the dike. From Pubanjin to Chang'an, it is almost a plain with a flat mountain with no danger to defend. If Pubanjin falls, the entire Guanzhong will be over.

Although Tongguan and Wuguan did not make Sima Lun have anything to worry about for the time being, Pu Banjin was like a sword hanging above Sima Lun's head, and felt that he would always take his life. So after leaving Tongguan, Sima Lun went north and headed straight to Linjin Pass.

Pubanjin is a ferry crossing on the Yellow River. In the past, there was a floating bridge on the Yellow River. People on both sides could travel from the Yellow River. However, since the Bingzhou Army captured Hedong, the Sima Army demolished the floating bridge and added checkpoints on the west bank of the ferry crossing, and sent heavy troops to garrison. The traffic between the two sides was cut off. Although the people on both sides heard about each other, they could only stay away from each other.

There is a pass on both sides of Pubanjin. To the east is Pubancheng, a small county town affiliated to Hedong County. On the west bank is Linjin Pass, which was established during the Warring States Period. Linjin Pass means approaching, so Linjin Pass is also a throat fortress leading to Jin from Qin.

Pubanjin has been a must-fight for military strategists since ancient times. Most of the Yellow River between Qin and Jin dynasties travels between high mountains and valleys, with rapid water flow and a spectacular wonder like Hukou Waterfall. Therefore, it is difficult to find a suitable ferry between Qin and Jin dynasties. The river surface in Pubanjin is wide, the water flows smoothly, making it convenient to cross the river, so it is naturally an ideal place to cross the river.

Since the fall of Hedong, Pubanjin has become the natural border between the Sima Army and the Bingzhou Army. Guo Huai, the governor of Yongzhou, sent an army at Linjin Pass, strictly blocked the ferry and prohibited anyone from traveling on the Yellow River. The first is to prevent the possible sneak attacks of the Bingzhou Army, and the second is to prevent the Bingzhou Army from sneaking into Guanzhong to spy on the military information. Therefore, Pubanjin has been completely abandoned over the years.

Since this is not the main attack direction of the Bingzhou Army, even if the soldiers stationed on both sides face each other across the river, there has never been any friction or conflict, and the situation here has always been quite calm.

When the imperial court moved its capital to Chang'an and the Sima army retreated westward, the originally calm Pubanjin suddenly became uneasy. Originally, there were only more than a thousand soldiers stationed in Jinguan, but suddenly a hundred thousand troops drove here, and the quiet Pubanjin suddenly became noisy.

Zhong Hui is the commander of this army, and he also knows the heavy responsibilities he shoulders. Pubanjin's defense is much more difficult than Tongguan and Wuguan. When Sima Lun came to power, he assigned such an important defensive task to Zhong Hui. Obviously, this is a reliance on Zhong Hui and a recognition of Zhong Hui's ability. Zhong Hui naturally did not dare to slack off. After arriving at Linjin Pass, he actively made arrangements and made every effort to build this line of defense that concerns the life and death of Guanzhong.

Sima Lun had also visited Linjin Pass several times before, and studied the deployment of the defense line with Zhong Hui and formulated a detailed combat plan.

Sima Lun believes that since the Bingzhou army has a mature river crossing tactic, if they attack Pubanjin this time, they will inevitably follow the Baimajin's crossing method. The Sima army must play to their strengths and avoid their weaknesses and build a targeted defense line, so as to ensure that Pubanjin is not lost.

With the deterrence of crossbow flying stone ships, shore defense fortifications basically have no effect. Zhong Hui proposed to build only some low stone walls on the embankment of the Yellow River as a cover, so as to avoid the fatal blow of the Bingzhou army's stone casting ships. At the same time, some crossbow soldiers were deployed behind the stone walls, which could hysteresis and interfere with the Bingzhou army's crossing army and kill Bingzhou army with vitality.

Of course, in the face of the powerful attack power of the Bingzhou Army, this shore defense stone wall is simply impossible to withstand the destruction. On this line of defense, the Sima Army only needs to dispatch a small number of troops, because no matter how many people are sent, it will be for nothing. The main part of the entire line of defense is still in the subsequent depth position.

The Sima army could not stop the Bingzhou army from landing, but it could set up layers of defense networks on the deep beach positions, making it difficult for the Bingzhou army to move forward after landing.

The loss of Baimajin certainly has a great relationship with the Bingzhou army's powerful weapon of flying crossbows, flying stone ships, but what really caused the defense line to collapse quickly was the attack of the Bingzhou army's heavy cavalry. These steel monsters in heavy armor were like moving iron towers, invincible. Wherever they went, the Sima army was crushed, so the Bingzhou army's cavalry was truly causing a devastating blow to the Baima Crossing defense line.

As a witness, Zhong Hui naturally remembers this nightmare battle. The Sima Army had no army that wanted to curb the heavy cavalry of the Bingzhou Army. No army could escape the fate of destruction when confronted with it. The only reliance of the Sima Army was to build enough fortifications to block the attack of the Bingzhou Army's cavalry.

In fact, if the preparations are sufficient, the Bingzhou cavalry will have nemesis. If you want to block the cavalry's advance, the method is not complicated, just a deep trench and high base.
Chapter completed!