Wuguan, the throat of Qin and Chu, and the key of Guanzhong, were called the fourth pass of Qin together with Hangu Pass, Xiaoguan and Dasan Pass. It was called Shaoxi Pass in ancient times, and was renamed Wuguan during the Warring States Period.

The Guancheng of Wuguan is built on a relatively flat high ground in the canyon. It is adjacent to the high and steep Shaoxi Mountain in the north and is on the verge of dangerous south. The terrain of Guanxi is relatively flat, but the road to the east is extended to the mountainside and curled by the mountainside. The cliffs are high and the valleys are deep, and it is difficult to move around. It has always been a place that ancient military strategists must fight for, and it is also the easiest to defend and difficult to attack.

Not to mention that there is an outer land that is equally difficult to attack in Wuguan, which is the Suspension Bridge Ridge five miles east of Wuguan. The Suspension Bridge Ridge is not only high and steep, but also a Qin-Chu Dividing Wall about seven miles long on the ridge. The wall is made of stone. It is not only the Qin-Chu border line during the Warring States Period, but also an ideal fortification. The boundary wall opens the door, a city tower is built on the door, and deep trenches are dug outside the door, which are all relied on suspension bridge traffic. The defenders only need to pull up the suspension bridge, and it is difficult to close the door after attacking.

It was quite good for the young commander army who was preparing to enter Wuguan. After reunifying the six kingdoms, it used countless manpower and material resources to build a road that could reach Xianyang from Wancheng. It is much easier to enter the Suspension Bridge Ridge than before. If it were in an era without the Suspension Bridge Ridge, the mountain road that was claimed to be unable to ride together would be enough to make people afraid and dare not have any inconsistency.

However, even so, after reaching Suspension Ridge, the road that was several dozen meters wide was forced to narrow to only three meters wide, and had to move upwards in a tortuous manner. It was also difficult to invest attacking forces on the front line, and it was also very easy to hit the defensive army with a heavy blow.

If you insist on saying that there are any weaknesses in Wuguan, it is just two small flaws. One is that the city of Wuguan is too small, with a circumference of only three miles. There are still some people living in the city, and they can only station four or five thousand troops even if they die. The second is that the mountain of Suspension Bridge Ridge is too high, the water source is sparse, and it is very difficult to obtain water. It is difficult to station too many troops. At the same time, the boundary wall on Suspension Bridge Ridge is less than two meters, which is far less tall than ordinary city walls, which can make the attacking side see a little hope of a strong attack.

Regarding these situations of Wu Pass, Xiang Kang had already had a very detailed understanding of the situation in Wancheng, and was very clear that it was absolutely impossible to force the breakthrough of Wu Pass, but there was no way. If you could not break Wu Pass, you would not be able to enter Guanzhong. So Xiang Kang had no choice. He still swore to march westward in Wancheng on the 25th day of the first lunar month of the third year of Qin Ershi. He led the main force of the young commander army with about 26,000 troops to open the Wu Pass.

The troops advanced quickly along the Chidao. Even though they carried the food and grass that could be used for two months and a large amount of military supplies, the main force of the Young Marshal Army arrived in Xi County in just over six days. Zhou Shu and Li Shang's troops, who had previously attacked Xi County from Danshui, had already taken Xi County to capture Xi County, and also included about 3,000 troops from another anti-Qin Yishi Division in Nanyang. After meeting with the main force of the Young Marshal Army, the total strength of the Young Marshal Army was expanded to more than 37,000.

After meeting with Uncle Zhou, Li Shang and others, Xiang Kang first praised Wang Ling, a fellow villager in Liu Laosan who took the initiative to accept the enrollment of his own army. He gave him a miscellaneous general, gave him some money, and promised to be named a marquis in the future. After Wang Ling thanked him repeatedly, Xiang Kang turned to Uncle Zhou and asked, "How is it? Have the enemy situation in Wuguan clearly explored?"

"The exploration was almost done." Uncle Zhou replied: "Before Wuguan, there were about 5,000 defenders, and the general was named Wang Bang. Later, the tyrant Qin court sent 6,000 reinforcements to Wuguan. The commander of the tyrant Qin general was Li Cai, the second son of the famous tyrant Qin general Li Xin. However, the city of Wuguan was too small and there was no place suitable for garrisoning troops in the east, so the tyrant Qin reinforcements were stationed seven or eight miles west of Wuguan to serve as a support for the tyrant Qin army in Wuguan."

"What is the deployment of the tyrannical Qin army in Wuguan?" Xiang Kang asked again.

"There are 1,500 tyrant Qin troops on the Suspension Bridge Ridge. The guard is Wang Bang's deputy Ning Zhi. Wang Bang led 3,500 troops to be stationed in Wuguan City." Uncle Zhou answered truthfully, and said: "Also, Song Yang, the chief of the tyrant Qin Nanyang County who had escaped from Wancheng before, has been confirmed to have escaped to Wuguan and returned to the tyrant Qin troops. He was still left under the tent to listen to him. He is currently stationed in Wuguan City with Wang Bang."

Xiang Kang nodded, Song Yang, who was too lazy to care about leaving a book and scolded him, but asked Uncle Zhou again: "What do you think about our battle to attack Wuguan?"

"I'm afraid it's difficult to take advantage of the opportunity." Uncle Zhou replied very directly, saying: "The tyrant Qin army has too much advantage in geographical location and will never easily go into battle. We want to design and lure the enemy to fight, and we can only forcefully attack by force. Fortunately, the tyrant Qin army in Wuguan and their reinforcements do not have decent practical experience, and their combat effectiveness is not very strong."

Xiang Kang dared not be as optimistic as Uncle Zhou, because Xiang Kang knew the situation of the Young Marshal Army very well and knew that the Young Marshal Army soldiers were indeed experienced and had rich combat experience. However, because Xiang Kang had liked to take advantage of the opportunism before, the Young Marshal Army soldiers had never fought a particularly difficult battle, especially the long and protracted battle. The geographical advantage of the Wuguan Qin army was too great. No one could guarantee whether the Young Marshal Army soldiers could adapt to such an absolute battle against the wind, so Xiang Kang would never dare to underestimate the enemy at all. He just said: "How to fight in detail, let's talk about it when you get to Wuguan."

Uncle Zhou nodded and agreed, and then the Young Marshal's Army just paused and rested outside the county town, quickly completing the reorganization of the main force and the partial division, leaving behind two thousand absolutely reliable troops to guard the protection retreat of Xixian County. He continued to advance west early the next morning, and after more than two days, he crossed Nanyang County and officially set foot in the inner historian of the Qin Dynasty.

The more the main force of the Young Marshal Army went west, the narrower the road became. When Xiang Kang could see the towering suspension bridge ridge with his naked eyes, the road on the plain, which could reach nearly 70 meters wide was narrow enough to only more than ten meters. The main force of the Young Marshal Army was forced to turn into a long snake formation while moving. The distance between the front and the back team reached several miles. Fortunately, it was early spring, and the grass and trees on both sides of the road were not in full bloom, so it was difficult to hide the ambush. The Young Marshal Army did not have to worry too much about being suddenly killed by the Qin army and cut into two pieces.

After finally reaching the foot of the Sullbridge Ridge Mountain, after looking at the mountaineering road, Xiang Kang couldn't help but curse, "Who said that Shu Road is difficult, it is more difficult to reach the sky? In my opinion, this Qin Road is definitely more difficult to walk than Shu Road!"

It’s really impossible to blame Xiang Kang for cursing. After Qin Shihuang practiced the road to the foot of the Suspension Bridge Ridge, he had to turn nine bends to reach the top of the mountain. The mountain of Suspension Bridge Ridge was still very steep. It was absolutely no problem to push a stone from the mountain and hit it directly at the foot of the mountain. If the young generals wanted to rush from the mountain to the top of the mountain, Xiang Kang didn’t even dare to think about it.

Fortunately, the morale of the young generals was pretty good. Although they had seen the harsh terrain and dangerous routes of advance with their own eyes, Long Qi, Zhong Limei, Ding Ji and Li Shang and other young generals volunteered to lead the army to attack Susun Tong and seize control of the mountaintop high ground. Xiang Kang refused to take the lives of the soldiers and decisively ordered the army to camp at the foot of the mountain. At the same time, he sent Shusun Tong to carry Jinyu up the mountain to persuade the Qin general Ning Zhi who led his army to guard Suspend. He arranged two scouts familiar with geography to dress up as Shusun Tong's entourage and took the opportunity to explore the current situation on Susun Tong.

When it was dark, Shusun Tong returned to Xiang Kang dejectedly to apologize, saying that although he had persuaded Ning Zhi for a long time, Ning Zhi was stubborn and refused to surrender, but also took the opportunity to swallow the gold and jade artifacts that Shusun Tong had bought. Fortunately, Shusun Tong did not gain anything this time. The young commander-in-chief army scout who dressed up as his follower went up the mountain took advantage of the lack of experience of the Qin army on the mountain. Not only did he understand the basic deployment of the Qin army and secretly drew the terrain on the mountain, he also discovered a very important situation - that is, because the Qin army on the mountain had a long way to get water down the mountain, he installed some wheels on the cliffs on the south side of the suspension bridge ridge, tied wooden barrels with ropes to put them down the cliffs, and directly fetched water in the Danshui on the south side of the suspension bridge ridge.

Hearing this, Xiang Kang was of course overjoyed and said, "The tyrannical Qin army on Suspension Bridge Ridge is so lazy. In order to be greedy for convenience, he did not send people down the mountain to get water. He actually used a rope to fetch water directly from the mountain? Aren't they afraid that we would suddenly cut off their water source?"

"The tyrannical Qin army should be so lazy because of lack of experience." Uncle Zhou analyzed and said: "But if they suffer once, they will definitely correct it immediately and send people down the mountain from the west to get water directly."

"With such a good opportunity, can we still let them make up for the loss?" Xiang Kang sneered and immediately asked Uncle Zhou: "General Zhou, hurry up and study it and see how we forced the mountain to attack the mountain while cutting off the water, so as not to give the tyrant Qin army a chance to correct mistakes. He also took the suspension bridge ridge temporarily to temporarily cut off the water and seized the suspension bridge ridge at the lowest cost."

"I'm afraid this is difficult?" Uncle Zhou frowned and said, "No matter how lazy and inexperienced the tyrant Qin army is, it must have a certain amount of drinking water storage in the camp. Even if we temporarily cut off their water source from the bottom of the mountain, they can send people to get water directly from the bottom of the mountain to the mountain. Even if we win this opportunity, the time will definitely be very short. I'm afraid it's difficult to let the tyrant Qin soldiers break down the water and get on their own."

"Do you still remember the ambushing Yang Xiong in Ben County?" Xiang Kang smiled and said, "That time I regretted the last time that there was too little turtle oil in the army, and there was no such thing as saltpeter and sulfur that caused fire. I couldn't burn Yang Xiong's army to death in that woods. This time I learned a lesson and brought all the turtle oil and saltpeter sulfur that Wancheng could get."

Uncle Zhou applauded and laughed, saying, "There is enough tincture and fire-induced objects. We also know the camp arrangement of the tyrant Qin army, so there is no problem!"

…………

It's time to take a look at the situation of the Qin army on Suspension Bridge Ridge. As Zhou Shun analyzed, the Qin army on Suspension Bridge Ridge is indeed inexperienced, so he was lazy to choose to use ropes and wooden barrels to directly fetch water from the top of the mountain. However, the terrain of Suspension Bridge Ridge is too beneficial to the Qin army, so the morale of the Qin army is still quite high. Seeing the arrival of the main force of the Young Marspenter Army, not only did he not panic, but he also hoped that the Young Marspenter Army would launch an attack as soon as possible so that the self-armed army could show its strength and use the terrain advantages to attack the Young Marspenter Army head-on, and win himself the opportunity to make meritorious and reward him.

But unfortunately, after arriving at the foot of the Sullbridge Ridge Mountain, the next day, the Young Marshal's Army was still not moving, which made many of the high-spirited Qin soldiers quite disappointed. The guard Ning Zhi was even more proud and believed that it was his strict arrangement that scared the Young Marshal's Army, so he was reluctant to take action. Fortunately, Ning Zhi was still calm and did not take it lightly because of the Young Marshal's Army's incomplete fear. When it was dark, Ning Zhi still carefully prepared the night precautions and then returned to the room to sleep with confidence.

Facts proved that Ning Zhi's careful arrangement was very correct. When it was approaching the second update that night, the Qin army lurking on the mountainside to monitor the road suddenly rang the gong to call the police. The Qin army, which had strict training, responded quickly and sent troops to rush to the edge of the flat ground on the mountain, smashed the well-prepared rolling stone wood down the mountain, successfully repelled the shameless sneak attack of the young commander's army and won the first victory in the defense of the Suspension Bridge Ridge.

But the matter was not over. At the third update, there were sounds of Tonggongs and alarms at the foot of the mountain, and many sounds of war drums and horns were heard. The Qin army in Suspension Bridge Mountain did not dare to be negligent. Ning Zhi also personally led the army out of the camp and led the Qin army soldiers to continue falling rocks and rolling wood to the mountain. It took quite a lot of effort to repel the second attack of the Young Commander's Army.

At the fourth update, when the young commander's army launched a sneak attack on Suspension Bridge Ridge for the third time overnight, Ning Zhi finally found that something was wrong. The originally sufficient number of rolling stones fell from the wood was consumed in large quantities without realizing it. Ning Zhi also came to his senses and ordered: "Stop putting stones! The thieves' army seemed to be deliberately feinting attacks, lying to use up the woods from rolling stones, so that they could go up the mountain with confidence!"

Finally, the Qin army soldiers continued to fall down and looked down for a long time. What made Ning Zhi stunned happened. A group of black shadows had already touched the top of the mountain, and there were only two bends left from the top of the Suspension Bridge Ridge. Ning Zhi was shocked and quickly ordered the Qin army soldiers to continue falling down and block the young general's army from rushing to the top of the mountain.

The distance was too close, and the effect of falling rocks and falling trees was not great at this time. Although many young commander soldiers were unlucky to be hit by wood and stones, and they died on the way up the mountain without seeing the shadow of the enemy, more young commander soldiers rushed to the top of the mountain with great stubbornness. Seeing that the situation was not good, Ning Zhi could only take the army back to the camp to guard the boundary wall. At the same time, after seeing that the falling rocks and falling trees had stopped on the mountain, more young commander soldiers also seized the time to climb the mountain with torches and reinforce the battlefield on the top of the mountain.

At this time, because the army fought three times in a row at night, the water storage in the Qin army camp had been consumed a lot without realizing it. What's worse, Ning Zhi, who was inexperienced, not only did not notice this danger, but also ordered the Qin army soldiers to hurry up and make fire to prepare rice in order to welcome the next attack by the young generals' soldiers. This caused a large amount of water to be consumed in the Qin army's water storage. If you want to steam the wheat rice that the Qin army likes to eat, you can use more than just the water.

The night of early spring was still long. It was not until halfway through the fifth hour. It was just dawn. Ning Zhi led a team of personal soldiers to the city wall to look at the situation of the Young Marshal's Army outside the city wall. However, Ning Zhi had just seen that the Young Marshal's Army soldiers had formed many temporary fortifications near the city wall with long shields. Numerous fire points had risen behind the long shield of the Young Marshal's Army, and roared into the Qin army camp behind the city wall like eyes. It immediately ignited many Qin army tents. In addition, some rockets shot directly at the city wall and nailed to the wooden city wall.

"Strange thing, how could the thief army be so clear about where our military tent is concentrated?"

When Ning Zhi was confused and quickly ordered the soldiers to put out the fire, the Qin soldiers in the camp were also busy extinguishing the rockets shot by the Young Marshal. However, the rockets of the Young Marshal's army continued to force the Qin soldiers to lift water to put out the fire. At the same time, some Qin soldiers also rushed to the cliff in the south and put down the wooden barrels with ropes to get water. But soon, these Qin soldiers found something wrong. After the wooden barrels were placed at the foot of the mountain, they all disappeared without a trace, and the ropes they were struck were clearly marked with cuts...

At this time, as time went on, many Qin soldiers were already thirsty and began to look for water to drink. However, what surprised these Qin soldiers was that there was basically no drinking water in their camp. In addition, the Qin soldiers who went to fetch water also returned empty-handed, saying that all the ropes for fetching water were cut off at the foot of the mountain. When these situations finally came to Ning Zhi, Ning Zhi was stunned at first, and then immediately cursed, "The traitor raised by the bitch actually attacked the top of the mountain while cutting off our water source. It was simply shameless and shameless!"

The Qin army had the opportunity to make up for the loss of sheep. In order not to let the army be in trouble, Ning Zhi immediately ordered two hundred soldiers to carry barrels and vehicles down the mountain from the west and go directly to the Danshui shore to transport water up the mountain. However, before the Qin army's water-seeking soldiers left the camp, the soldiers of the young generals who had sufficient preparations had already launched a strong attack on the boundary wall.

The Young Marshal's attack tactics were very simple. It was to use the trench bridge chariots brought by the army to build temporary bridges and use flying ladders to directly hit the boundary wall. Fortunately, the height of the Qin-Chu boundary wall is less than two meters, and it is much easier to rush to the top of the boundary wall than to rush to the city wall. The Young Marshal's soldiers had also accumulated a lot of experience in attacking before, so the Young Marshal's soldiers successfully rushed to the boundary wall just for the first time.

Here we must also praise the fighting will of the Qin army in Sutraqiaoling. Although the young commander's army rushed to the top of the boundary wall during the first attack, relying on the local military advantage, the Qin army soldiers quickly surrounded or directly forced the warriors to the boundary wall, and did not give the young commander's soldiers a chance to quickly occupy the position on the top of the wall. At the same time, after seeing the war on Sutraqiaoling, a thousand reinforcements were quickly sent to reinforce the guards of Sutraqiaoling five miles away.
Chapter completed!