Although Jiang Wei set the focus of the Xiling defense line on the periphery of Xiling, Jiang Wei did not take the defense of Xiling City lightly. After all, Xiling City is on the north bank of the Yangtze River, and the Wei army held the power of the Yangtze River to control the water, so Jiang Wei attached great importance to the defense system of Xiling City.

Once upon a time, the Yangtze River was the biggest reliance of Xiling City. Although Xiling City was built on the north bank of the Yangtze River, because it was backed by the Yangtze River, there was no need to worry about the enemy's siege of Xiling when defending. This passage on the water was impossible to cut off by the Wei army.

When Wu Jun defended Xiling, there was no pressure at all. Even if he couldn't hold on, wouldn't he still have a way out of water?

Therefore, the Wu people have always maintained a very optimistic attitude towards Xiling's defense. After decades of operation by the Wu people, the defense of Xiling City can be described as solid as a rock. This is also the source of confidence that Jiang Wei decided to defend Xiling.

However, Jiang Wei believes that simply defending Xiling City is meaningless. Once the Wei army's troops reach Xiling City, no matter how strong the defense is, it is useless. No matter how strong the city walls of Xiling City are, they cannot withstand the attack of the Wei army's catapults. Therefore, only by using the dangerous terrain around Xiling and using tactics to defend the enemy outside the national gate can you be sure of success.

That's why Jiang Wei's long-range plan was launched. He deployed heavy troops to defend the situation on the front lines of Qiting, Huya Mountain and Ma'anshan. As long as these places are not lost, Xiling City will be as stable as a mountain.

As for whether the Wei army would use the navy to attack Xiling directly, this possibility is not non-existent, but very small. According to the previous Wei army's crossing the river model, the Wei army had to at least gather troops on or near the other side of Xiling City to complete the crossing of the river landing.

But the terrain of Xiling is different from other places. The rivers are turbulent and dangerous reefs are densely packed. Moreover, there are thousands of mountains on both sides of the river bank, with canyons and cliffs everywhere. The Wei army had no possibility of gaining a foothold on the other side of the Yangtze River. How could it directly attack Xiling City?

Therefore, Jiang Wei and Lu Kang both held a negative attitude towards this, believing that the Wei army could not directly instigate an offensive against Xiling. If they wanted to conquer Xiling, the Qingting would inevitably be a hurdle that they could not avoid.

As long as the Shu army strengthens the defense of the Qiting, they can ensure that Xiling is safe.

Only by surprise can one attack be unpredictable. If Cao Liang exposed the plan of water attack from the beginning, the Shu army would inevitably strengthen Xiling's defense, which would be detrimental to the Wei army's attack.

Therefore, when Cao Liang was in the early stage, he kept hiding and unstoppable. He increased the strength to attack Qiting and Huya Mountain and used the most conventional fighting style to attack. It was good to attack, but it didn't matter if he couldn't. After all, Qiting and Huya Mountain, including Ma'anshan, which had not started a battle, restrained too much of the Shu army's troops, and Xiling's defense also became empty.

This is exactly what Cao Liang hoped. Although this emptiness is really empty, and Xiling's defense is just weak, it is enough for Cao Liang. As long as Jiang Wei does not station heavy troops in Xiling City, it will leave Cao Liang with great opportunities.

In fact, just when the Right Legion launched an attack on Qiting and Huya Mountain, Cao Liang had already issued an order to prepare for battle to Wang Jun, but the Navy and Marines had always been among the Navy. They really had tactical arrangements, and others couldn't understand them.

Including Du Yu, he knew nothing about the organization within the navy. It is conceivable that the people of Wu and Shu knew that Cao Liang had such a land combat force hidden in the navy.

It has to be said that Cao Liang's confidentiality work has been done to the extreme. Only those inside the navy and senior navy members will know the existence of this army.

Now it's finally time to start, Cao Liang told Du Yu about this plan.

Du Yu was indeed shocked. In fact, these two battalions of the Marine Corps also have numbers. The left camp is called Pingjiang Camp and the right camp is called Pinghu Camp. This is an open number. They belong to the navy, but their functions are unknown. No one knows where they are in the navy.

Some people speculate that these two battalions are responsible for the logistics of the navy. After all, the huge navy fleet also needs land logistics to support, transport materials, guard water camps, and maintain them, which also require manpower.

Du Yu also tends to think that after all, if an army does not have a complete logistics support system, it will not be invincible. Measuring the combat effectiveness of an army, the level of logistics support capabilities is an important indicator. The reason why Cao Liang equipped the navy with two infantry battalions was probably due to this consideration?

But now after listening to Cao Liang's plan, Du Yu realized that he was not only wrong, but also a big mistake. The Pingjiang Pinghu Second Battalion was not a logistics support force at all, but a real attack battalion, a new concept army - the Navy and Marine Corps.

This army is also considered to be the top configuration of infantry, including crossbows, fish scale armor, various types of combat vehicles, and siege equipment. Apart from not being equipped with war horses, this marine team can be compared with the most elite army infantry battalion.

Moreover, the source of troops from Pingjiang Camp and Pinghu Camp itself came from infantry. After joining the navy, they began to train on the ship to meet Cao Liang's requirements for his amphibious operations.

Amphibious combat is a completely unfamiliar concept in this era. Even if there are so many military philosophers and military masters, they have never talked about this method. It is no wonder that Du Yu claims to be Du Wuku, who has read a lot of books, has learned a lot of knowledge and has never heard of the navy and army being able to fight in a mixed manner.

The Navy Marine Corps does not just simply combine the navy and the army, and transport the army to designated locations by the navy fleet. It is a brand new combat mode. After long-term training, the Navy Marine Corps has been completely integrated into the navy's combat system and is integrated.

The Marine Corps is equivalent to the arms and thighs that the navy extends to the shore. In the past, the navy's range of movement was limited to the water surface. They were invincible on the water, but once they got ashore, they would become lambs at slaughter and would not be able to gain a foothold.

But now that the navy has the Marines, their combat effectiveness can be extended infinitely. In the land that was previously unattainable, now the navy can not only gain a foothold on the shore, but also gallop freely and kill all directions.
Chapter completed!