Now after all, Zhu Weijun is facing two attacks by the combined forces of Yuan Shao and Cao Cao, and in terms of total strength, Zhu Weijun is still somewhat insufficient.

Therefore, Zhu Weijun could only resolve the disadvantage of insufficient troops by implementing defensive counterattack tactics, and with the help of the geographical advantage in defense, he used a small number of troops to kill and injure a large number of troops of Yuan Shaojun and Cao's army.

But now, if Zhu Weijun doesn't take the initiative to attack, facing the rockets fired by Cao Jun on the mound every day, it will indeed make Zhu Weijun's camp a little troublesome.

Inside the camp, all the tents and buildings can be withdrawn beyond the range of the rocket, but the outer wall of the camp cannot be moved, so under Cao Cao's fire oil and rocket attack, the outer wall of the camp is on fire, and it is too late to extinguish the fire.

Many of the outer walls of the camp have been burned to black coal, and there is not much defense.

Of course, this is nothing, anyway, Zhu Weijun's troops on the side of the Tiger Prison Pass are actually not much less than Cao's army, the big deal is to wait for Cao Cao to attack, on the one hand, use the stone cart to counterattack, and on the other hand, use soldiers to resist in the front.

In this way, it can still occupy the advantage of defensive counterattack, or can reduce the loss of its own troops, and greatly reduce the strength of Cao's army.

Unexpectedly, after Cao Cao saw Zhu Weijun's stone cart, he also asked his craftsmen to study this long-range weapon, but although Cao Cao did not have the blueprint of the thunderbolt cart presented by Liu Xuan in the original history, he still found the design of the stone cart from the treasury of the royal family of Xudu.

In the Spring and Autumn Period, the stone cart has been used on the battlefield, but the technology at that time was slightly backward, so there are naturally relevant design records in the treasury of the Han Dynasty.

Therefore, Cao Cao found the design of the stone cart, which was also built and transported to the frontal battlefield, so when Cao Cao attacked the camp of Zhu Wei's army, he also pushed the stone cart up.

Even if Cao Cao's stone cart may not be as fast and powerful as Zhu Wei's stone cart that has been improved by craftsmen in terms of speed and power of throwing stones, it is like a tank with different performance, after all, it still has the effect of a tank.

Therefore, when Cao Cao launched another attack on Zhu Wei's army, the stone carts of both sides threw rocks, oil cans and flints at the opponent's army formation, so that the battle situation was a bit hard to fight each other.

This is still not in line with Zhu Weijun's current defensive counterattack strategy, and Zhu Weijun has no need to use such a dangerous checkpoint as the Tiger Prison Pass, and fight against Cao Cao.

Therefore, after the two sides fought each other for a day and almost lost two or three thousand troops, Zhu Weijun gave up the camp on the east side of the Tiger Prison Pass, and the whole army withdrew to the Tiger Prison Pass, preparing to take advantage of the geographical advantage of the Tiger Pass and wait for Cao Cao's next offensive.

As mentioned above, the terrain of the Tiger Prison Pass, now Cao Cao can put the frontal attack force in front of the Tiger Prison Pass is only three or five thousand people, even if he can build a mound outside the Tiger Prison Pass again, but if he wants to reach a height compared to the Tiger Prison Pass, it is not possible to achieve it in a short time.

At the same time, it makes no sense to build this mound far away, but when it is close, it will naturally be attacked by Zhu Weijun on the Tiger Prison.

This time, Cao Cao could not have many troops in front of the Tiger Prison Pass, and Zhu Weijun had the long-range attack assistance of the defenders on the Tiger Prison Pass, so he naturally dared to come out and counterattack.

So Cao Jun wanted to build mounds several times, but Zhu Weijun counterattacked and repelled the civilian service auxiliaries who piled up mounds, if this goes back and forth, with the height of these mounds rising, Cao Cao's mounds can also become another line of defense for Zhu Weijun outside the Tiger Prison Pass.

After discovering that this tactic of piling up mounds was meaningless for attacking the Tiger Prison Pass, Cao Cao could only give up this tactic and thought of using a stone cart to storm the Tiger Prison Pass.

However, the stone cart that Zhu Weijun placed on the wall of Tiger Prison Pass had a condescending advantage, and the projectile distance was farther than that of Cao Cao's side, and as a result, Cao Cao's stone cart was destroyed several times in the attack.

At the same time, the narrow valley terrain in front of the Tiger Prison Pass also allowed Cao's army to advance in a dense formation, which allowed Zhu Weijun's stone cart to achieve maximum lethality.

As a result, after Cao Cao lost three or four thousand troops here, there was still no progress, and Cao Cao did not dare to attack, his troops could not be spent, and now his loss of troops has reached 10,000 people.

Although Cao Cao's total strength may also reach more than 100,000, in addition to the 50,000 elite soldiers he brings now, the others are the second-line troops stationed in various places, so if these elite soldiers are lost in vain in front of the Tiger Prison Pass, it will be tantamount to digging out Cao Cao's old capital.

Now that he has lost more than 10,000 elite soldiers, it makes Cao Cao's heart ache, if it weren't for the fact that this battle is related to the future success or failure of life and death, Cao Cao can't help but fight, I'm afraid that Cao Cao has already withdrawn.

What's more, Cao Cao also calculated from the previous battles that the losses on Zhu Weijun's side were only two, three thousand, four, or five thousand at most, so if he continued to fight so hard, Cao Cao's troops might not be as strong as Zhu Wei's troops stationed at Tiger Pass.

Especially now in the face of the offensive battle of Tiger Pass, Cao Cao's army's battle loss ratio against Zhu Wei's army can almost reach 10 to 1 or 20 to 1.

For this reason, Cao Cao had to slow down his offensive against the Tiger Pass, and discussed with his subordinates Guo Jing, Cheng Yu and other strategists in his own military tent how to capture the Tiger Pass at the lowest cost.

For a while, Cao Cao thought of retreating as a strategy, thinking of pretending to retreat, and when Zhu Weijun came out of the Tiger Prison Pass to pursue, he would ambush and counterattack.

It's a pity that Zhuge Liang exists on the side of Tiger Prison Pass, so although Cao Cao pretended to withdraw his troops, Zhuge Liang didn't care at all, and also blocked Pang Yan's idea of sending troops to pursue.

For Zhuge Liang, as long as Zhu Weijun can block the attack of Cao Cao's army in the Tiger Prison Pass, it will be a strategic victory, as long as Cao Cao really withdraws his troops, then Yuan Shao's side will naturally have a chain reaction.

When the time comes, Zhu Weijun can completely repel Yuan Shao first, and then attack Cao Cao in a big way, and now Cao Cao's retreat will only be waiting for death, so Zhuge Liang on the one hand suspects that Cao Cao's retreat is fake, what kind of strategy and so on, on the other hand, it doesn't matter Cao Cao's retreat.

As a result, Cao Cao pretended to retreat, and found that Zhu Weijun was completely unmoved, and had to kill back, as Zhuge Liang expected, it is impossible for Cao Cao to really withdraw now.

Next, Cao Cao really can't think of any strategy, the Tiger Prison Pass can't be played here, even if he is transferred to play other levels, he will also face the current problem.

At that time, it will take time to mobilize the army, not to mention, and it may make the current temporary ally Yuan Shao have some bad thoughts, so Cao Cao has no choice but to continue to spend with Zhu Weijun outside the Tiger Pass, at least his side can contain Zhu Weijun's forces in the Tiger Pass.

Cao Cao also knew that the main force of Zhu Wei's army was stationed at Tiger Pass, so now he could contain the main force of Zhu Wei's army on the side of Tiger Pass, which could be regarded as having certain strategic significance for the attack on Zhu Wei......