Although the Xiagu Pass is very steep, the two sides of the pass are steep mountains, cliffs, and narrow gorges, which is not conducive to attack and is only conducive to defense. Especially when attacking, the troops cannot be used. No matter how many troops are, it is useless. If you cannot form an advantageous force, it can only be a tactic of adding fuel to the attacking party. This is fatal to the attacking party.

In ancient wars, the most difficult thing was to attack cities. Lu Ning's strongest military was cavalry. Although the infantry was also very powerful, when facing a strong city, it also required a large amount of sacrifices from soldiers to exchange. Fortunately, the black gunpowder produced by Lu Ning, although it was impossible to compare with the efficient yellow explosives in later generations, could be used to explode the city gates.

Of course, Guo Huai would not be so stupid that he let his soldiers attack for a strong attack. Faced with such a strong city, the soldiers could not unfold and would cause great casualties; this would definitely not be possible. Guo Huai's infantry spent a lot of training for several years in order to attack Hanzhong and Yizhou. He was consumed all of them all. What should he use to attack Yizhou?

Guo Huai also used night to blew the city gate open with explosives and finally took down the Xiegu Pass in one fell swoop. After listening to the Xiegu Pass, Guo Huai asked his soldiers to rest for two days. During this period, the soldiers' physical strength was indeed very exhausted.

Two days later, Guo Huai's army entered the Hanzhong Plain in one fell swoop, and took down Shangyong, east of Hanzhong, leaving behind two thousand troops to guard it. Then he rushed to the west and headed straight to Nanzheng, the capital of Hanzhong.

After Guo Huai's army captured Xicheng, Jiang Gan, the army's adviser, went to Nanzheng, the capital of Hanzhong to convince Zhang Lu. Jiang Gan was also one of the characters in the Three Kingdoms version, and was a classmate of Zhou Yu. He was plotted by Zhou Yu in history. But in fact, Jiang Gan's talent is still very outstanding, but he is not at the same level as Zhou Yu.

Jiang Gan also came to Jinyang with his reputation. Later, after studying at the Administrative Academy in Jinyang, he joined Lu Ning's group. His talent was also recognized by everyone. This time, he made the plan to Hanzhong before Xu Huang's army sent troops.

Everyone knows that without strong military power, no matter how outstanding a lobbyist is, he will achieve nothing. If you want Zhang Lu to surrender, you must first beat Zhang Lu to the side. Be afraid. Only in this way can persuasion be useful, otherwise no one will surrender.

At this time, Xu Huang's army had already taken Yangping Pass and killed in front of Dingjun Mountain. Dingjun Mountain is located at the intersection of Jushui and the river. It is blocked from the Chencang Road, and the former way into the throat of Hanzhong. It is known as the gateway of Nanzheng.

After occupying the pass on the Jushui River, if Xu Huang's army wants to march into Nanzheng, the capital of Hanzhong County, it must first occupy Dingjun Mountain, this abrupt mountain standing on the plain. For Zhang Lu's army who wanted to defend Nanzheng, since it is impossible to expel Xu Huang's army from the valley road, then the significance of defending Dingjun Mountain is quite great.

If Xu Huang's army wants to jump over Dingjun Mountain to attack the hinterland of Hanzhong, Zhang Lu's army can threaten the supply line behind Xu Huang's army as long as they defend it. This is the key to fight for both sides.

When Zhang Lu learned that Xu Huang's army had reached Dingjun Mountain, he reinforced most of the troops in his hands to Dingjun Mountain. This was the only one to defend Nanzheng, the capital of Hanzhong. Once Dingjun Mountain was lost, Nanzheng would face the siege of Dahuang's army.

On Zhang Lu's side, after receiving the news of Chen Cangdao's defeat, he hurriedly transferred his army to defend the capital Nanzheng. On Dingjun Mountain, an extremely important strategic stronghold, Zhang Lu's troops were strengthened to more than 60,000. At the same time, Zhang Lu also learned the lesson of the loss of Chen Cang Pass. In addition to garrisoning heavily on Dingjun Mountain, in Tiandang Mountain, Micang Mountain and other places, Zhang Lu's army also deployed layers of defense, and put on a stance to defend the enemy.

The camp of Zhang Lu's army was stationed in a high place in the mountains, facing the heights. Looking down at the riverside, there were plains and rushing rivers. This was definitely a very important place. If you defend such a place, Xu Huang's army would be exposed to Zhang Lu's noses whether they wanted to invade Nanzheng by land or water.

Xishan is located on the edge of the river like Dingjun Mountain, but Xishan is not close to the post road, but is located behind Dingjun Mountain. In terms of height alone, Xishan is even slightly higher than Dingjun Mountain. For Xu Huangjun, who was rushing from afar, the time cannot be changed, and harmony between people is not something that can be changed overnight. Only the right place can be changed.

Xu Huang stationed the army in two places to form a corner; one is on the avenue close to the river valley, and the other is on the Xishan Mountain; Xu Huang's purpose is obvious, that is, to control the height. Since Zhang Lu's army can threaten the passing Xu Huang's army from a high place in Dingjun Mountain, it is better to just take the Xishan Mountain, which is higher than Dingjun Mountain, so that Zhang Lu's army will not have the advantage in geographical advantages.

On the dense forest road in front of Dingjun Mountain, an army was walking along the mountain road familiarly. The army did not ignite torches, and the soldiers were all wearing armored clothes that looked like Lu Ning's soldiers. However, the identity of this army was not Xu Huang's army, but the army under Zhang Lu. The leader of the army was Zhang Wei, who had just lost Chencang Pass.

After Zhang Wei lost Chencang Pass for no reason, he felt angry and fled to Dingjun Mountain. When he saw Xu Huang's army camping separately. Zhang Wei immediately wanted to give Xu Huang's army a color, and wanted to take advantage of the familiar terrain and landform to launch a sneak attack on Xu Huang's army from the forest path.

For Xu Huang's army, although they had sent a lot of scouts when they arrived here, they could not figure out all of the dense forest trails at once, especially in places with complex terrain such as this, it is inevitable that they were attacked by sneak attacks.

The riverside is where Xu Huang's army camp is located. According to the military information found by the scout, Xu Huang was stationed here, with only 15,000 troops.

Zhang Wei still underestimated the defense ability of Xu Huang's army, especially the sentries at night, which were even more unexpected. Zhang Wei did not expect that there were not only open and secret whistles in Xu Huang's army's camp, but also hunting dogs accompanying the army. What made Zhang Wei most depressed was that before he could sneak into Xu Huang's camp, he encountered the bell emitted by Xu Huang's secret whistle.

In an instant, Xu Huang's whistle screamed. After hearing the ringtone and whistle, the soldiers put on their clothes, armor, helmets, and ran out of the barracks with the weapons in their hands.

For Lu Ning Army, no matter what soldiers are from any army, they have long been accustomed to the emergency gathering at night, which is a common occurrence during training; and now in the combat stage, there is no need to worry about the alertness of soldiers.

In just a few minutes, Xu Huang's side lined up and prepared for combat; the crossbow archers in the middle had already taken on a series of crossbows; ten thousand flying bear cavalry were placed on both sides, and as long as Xu Huang gave the order, he could attack the invading enemy at any time.

At this time, Zhang Wei was very angry. He originally wanted to attack, but he was discovered by Xu Huang's sentry from a distance. At this time, he was still nearly a thousand meters away from Xu Huang's army camp. If he forced an attack, he would have no chance of winning, and he might even fall into a hard battle. Zhang Wei thought about it and still let his army's back team turn into front teams and retreat immediately.
Chapter completed!