When the Battle of Jieting occurred, Fu Yan was only an underage child, but it did not prevent him from understanding the Battle of Jieting.

You must know that at that time, there were as many as 50,000 reinforcements from Wei, and half of them were cavalry, and the overall strength was stronger than that of the Shu army. Ma Tan took a different approach, condescending and guarding against danger. Ma Tan's strategy eventually failed, leading to the failure of the street pavilion, and before and after Ma Tan's execution, I don't know how many people scolded Ma Tan for being stupid and self-serving.

In short, in Fu Yan's impression, Ma Jian is a character who can only talk on paper, and Zhao Kuo, who trapped 400,000 Zhao soldiers in Changping, is a good person all the way.

And today Fu Yan is fortunate to return to the hometown of the street pavilion, but it is difficult to say that Ma Yan's strategy is wrong. The special geographical location of the street pavilion can be said that any leading general will have a headache when he arrives here, most of the passes are terrain dangerous, easy to defend and difficult to attack, but the street pavilion is just the opposite, it is easy to attack and difficult to defend, the cliff of Longshan is straight as cutting, and there are at least several miles wide between the two cliffs in the north and south, except for the earth mountain that is isolated from the surroundings, the whole street pavilion is open and open, such a terrain is undoubtedly beneficial to the attacker, and not conducive to the defender.

Wei is strong and Shu is weak, so it is difficult for the infantry of Shu to have an advantage and a chance of victory if they engage in a head-to-head confrontation with the cavalry of Wei, and by defending by relying on danger, they can give full play to the advantages of the Shu army's mountain warfare. The results of the situation. Because the situation was urgent. The Shu army just rushed to the street pavilion. The Wei army's brigade had already been killed, and the time was pressing, so Ma Jian was not allowed to calmly set up camp and build fortifications at the crossing, and under the circumstances, although it was not the best strategy, it was also the most effective strategy.

If the Wei army wanted to pass through the street pavilion, it was impossible to abandon the Shu army on the mountain. If he insists on going his own way, the entire logistics supply line will be cut off, and this result is unbearable for the Wei army, so after Zhang He arrived at Jieting, the first goal was to attack Tushan and completely take Jieting.

Mountain attacks were by no means the Wei army's strong point, and Zhang He did try to attack, but he soon found that not to mention 50,000 men would be twice the number of troops invested. It was also difficult to capture the well-defended Tushan of the Shu army. However, Zhang He quickly changed his strategy and besieged but did not attack. Cut off the water source of the Shu army on the mountain.

Zhang He's hand really held Ma Tan's life, which was also Ma Tan's biggest failure, ignoring the control of water sources, and putting the 20,000 Shu troops on the mountain into a desperate situation. The lack of water made the Shu army fall into a panic, and its combat effectiveness was sharply reduced, and by the time Ma Tan understood this truth, the defeat was already doomed.

Unlike Ma Tan's hasty march into the street pavilion, Liu Yin has been laying out the street pavilion for at least two months, and in the cold winter of heavy snowfall, Liu Yin went to the street pavilion with Fu Yan to survey the geography and plan how to defend the street pavilion.

When to establish a village? This plan was vetoed by Liu Yin.

The terrain of the street pavilion is flat, the pass that is as wide as three or four miles is quite difficult to build the fortifications of the high fortress and deep trench, and the defense value is not too high, it is now a severe winter, the ground is frozen three feet, and the manpower and material resources invested in digging a trench several zhang deep can be imagined. What's more, even if the trench is dug deeper, as long as the Wei soldiers concentrate their strength, they can fill it in a very short time.

Wei had a strong cavalry, and in the field battle, it was impossible to compete with it, and any temporary fortifications could only play a short-term delaying role, so Liu Yin only glanced at it and rejected the hypothesis that it had been regarded as a classic by the Shu people for decades.

Liu Yin couldn't help but feel some sympathy for Ma Tan, only by really standing in this position, can he realize how difficult it is to hold the street pavilion, with Ma Tan's 20,000 infantry at that time and Zhang He's 50,000 foot cavalry to do a head-on confrontation, it is undoubtedly an egg to hit the stone, if Ma Tan had adopted the strategy of fighting hard with the Wei army at that time, perhaps faster than the failure of refusing to defend with danger, the cavalry of the Wei army could easily crush it.

Ma Tan has also read military books, how can he not understand this simple truth, field warfare is the strength of the Wei army, mountain warfare is the strength of the Shu army, if you want to play to your strengths and avoid weaknesses, you must seize the commanding heights, use the advantages of the terrain to block the Wei army, so that you may be invincible.

The only thing that missed the calculation may be the problem of the water source, and perhaps Ma Jian also expected it, but the time was urgent, and it was too late for him to deal with it calmly. If God opens his eyes and rains down, Ma Tan's fate may not be like this, but unfortunately Ma Tan is not Sima Yi, he did not get the favor of God, and in the end he could not escape the fate of defeat.

"Let's go up the hill and have a look." Liu Yin looked at the dirt mountain that had made Ma Jian infamous for thousands of years, and couldn't help but sigh with emotion.

The mountain road is steep and straight, and they can't ride horses, Liu Yin and Fu Yan have to walk up the mountain, even so, they have to be careful, because the road up the mountain can hardly be called a road, and they have to use both hands and feet to successfully climb to the top of the mountain.

Climb to the top of the mountain, but it is suddenly open, different from the ruggedness of the mountain road, the whole mountain top is open and wide, it is more than enough to accommodate tens of thousands of people.

Liu Yin visually examined, although this earth mountain is just a small mound compared to the majestic main peak of Longshan, but it is such an inconspicuous small mound, at least three or four times higher than the city wall of Chengdu, from a strategic level, this earth mountain is ten times stronger than the strongest city in the world, straight and steep cliffs, completely insurmountable natural barrier.

It is no wonder that Ma Tan will choose to camp here, regardless of anything else, the fortifications of Tushan are natural, it is indeed an easy to defend and difficult to attack stronghold, here is tightly choked by the throat of Guanlong Avenue, just like a big lock, the street pavilion is firmly locked, whether left or right, the arrows shot on the top of the mountain, can cover the entire Guanlong official road, the Wei army wants to march into Longyou, there is no doubt that this Tushan must be taken.

Liu Yin stepped on the ankle-length snow, carrying his hands behind his back, pacing back and forth in the snow, obviously he was also really thinking about how to set up the street pavilion.

Finally, he stopped, took a deep breath, and said with a firm gaze: "The gains and losses of the street pavilion are all in the earth mountain, and the order is to build fortifications on the earth mountain from today onwards to prepare to defend against the enemy!" (To be continued.) )