In April of the Song calendar, General Li Yun led his troops to Zhangjiakou, and the name of Zhangjiakou at this time was Wucheng. Wucheng is located in the northwest of Youzhou (Beijing) four or five hundred miles away, where the terrain is high in the northwest and low in the southeast, and the Yinshan Mountain Range runs through the middle.

For a long time, Yinshan was the boundary between nomadic areas and farming peoples. When the agricultural area is strong, the Central Plains army will occupy Yinshan and then launch an attack to the north. When the agricultural area declines, the nomadic areas will recapture Yinshan and then invade Hebei in the south.

Li Yun is a person with a background, and he is also a general in the army who is recognized as being valued by Zhao Guan's family. Before leaving, General Li Yun had heard that the Zhao Guanjia were interested in using the Mongol captives after their use. With Li Yun's cleverness, he knew the intentions of the person who provided the information. If you can help Li Yun, you can get a reward in the future. Senior General Li Yun did not react to this, and in his opinion, as long as he could fulfill the orders issued by the official family through the military department, he could get promotion and honor. If the official family knew that Li Yun had the channel to know what the official family said in private, Li Yun didn't think that the Zhao official family would laugh at it.

The purpose of this dispatch was not to arrest people and ask the Mongols how to use the captured population, but to launch an attack on the region according to the previous plan.

From Youzhou to Wucheng, most of them are mountains, and occasionally you can see the flat land between the peaks. The agricultural area did not want to fight the army of the nomadic area between the lofty mountains and mountains, so from the Spring and Autumn Period and the Warring States Period, the Great Wall was built on the mountains. Seeing with his own eyes those continuous city walls that were somewhat dilapidated but still majestic, he also felt a lot of emotion in his heart. If he could, Li Yun hoped he would be the last Han Chinese general to attack here from the south to the north.

When I was feeling emotional, a reconnaissance unit sent a message, "The Mongol army was found at the pass ahead, and they occupied the Great Wall and tried to block the advance of our army. Li Yun frowned slightly, he didn't expect the Mongolian army to dare to fight against the Song army in the field, and still rely on the Great Wall to fight.

Li Yun had great determination and courage in the Mongolian general opposite, but the Mongolian general's heart was full of helplessness. The Song army marched through the mountains and mountains, and had already alarmed the Mongol army here. At this time, the Great Song Dynasty had been revived, not only regaining the lost territory of the Northern Song Dynasty, but also restoring Youzhou and other Han lands. The purpose of the Song army's capture of Wucheng was to block the main route of the Mongol army to the south. Correspondingly, the Mongol army did not want to lose Wucheng, an important southward stronghold. Now the Mongol army knows the Song army's ability to attack the city, as long as the Song army stands under the city, Kaifeng, Luoyang, Chang'an, Dadu and other famous cities will be conquered. The geographical conditions of Wucheng are very good, and the city defense is not as good as those famous cities. After deliberation, the Mongol general felt that he could not sit still in Wucheng, and the Mongol army chose to use the Great Wall built by the Han Chinese to deal with the Han army going north.

Condescendingly, the Mongol generals saw the Song army in the distance as small as ants. The height of the Great Wall itself is no less than that of the Wucheng City Wall, and the Great Wall is built on top of the lofty mountains. Standing on the shoulders of the mountain peaks, the Great Wall looks even more majestic and precipitous. The Mongolian generals felt the oncoming mountain breeze and looked down at the ant-like Song army under the mountain, and the helplessness in their hearts greatly subsided, and even gave birth to a burst of pride. If it weren't for the lack of cultural education, I'm afraid that this Mongol general would have tried to write some words.

A moment later, this pride dissipated because of Song Jun's actions. However, only the Chinese army temporarily stopped the ant-like Song army, and the front army continued to march towards the Great Wall.

"Are they going to attack the city with their bare hands?" The Mongolian general asked the lieutenant general beside him in surprise.

The adjutant general did not dare to answer immediately, and Song Jun's actions were indeed very surprising. No matter how you look at it, these Song troops only have rifles in their hands, and the Mongol army is now able to make their own muskets, and there is no longer the previous panic about the Song army's firearms. If the two sides fired at each other like this, the Mongol army, which was protected by the walls of the Great Wall, would have a clear advantage. With the Mongol army's understanding of the Song army, these treacherous and cunning Nanban would never put themselves in a disadvantageous combat situation.

The Song army, which continued to advance, found a gentle slope to approach the Great Wall, and the Mongol generals hurriedly directed the troops to move on the wide city wall. As he walked, he marveled at the design of the Great Wall. Such a long wall may seem like it would take tens of thousands, if not hundreds of thousands, of troops to fully defend it, but it doesn't really need to. The defending forces on the Great Wall only had to adjust the distribution of forces according to the enemy's movements. The enemy has to move on the mountain road, and the speed is very slow. Although the walls of the Great Wall are not very smooth, compared to the mountains, there is still a heaven and an underground. Troops were able to move quickly across the Great Wall and maintain numerical superiority in their positions at all times.

After a period of running, the Mongols and the Song army first rushed to the city wall on the gentle slope. Amid the shouts of hundreds of households and ten households, the Mongol army set up Mongolian muskets on the battlements and aimed at the slowly approaching Song army.

Seeing that the Song army was still a hundred meters away from the city wall, there were already Mongolian troops who couldn't help but shoot at the Song army. One person opened fire, and the others did not care about the command of the ten and hundred households, and then opened fire. In the blink of an eye, the Great Wall was filled with gunfire and gunsmoke.

The movement began abruptly and ended quickly. Compared with the light muskets of the Song army, the caliber of the Mongolian muskets was about 25 mm. In the field, you need to use a stick to bear the weight of the muzzle, and the arm strength of a single shooter cannot hold a musket to aim at the enemy. The battlements in the city walls made the Mongols more labor-saving, but they could not make this musket carry out a dense three-stage attack like the Song army's muskets.

The general was choked by the smoke and coughed, but fortunately, the location of the Great Wall allowed the mountain wind to quickly blow away the smoke. Looking out from the battlement, the Song army seemed to be a little dazed by this round of shooting, and their hesitation and fear could be clearly seen in their actions. At this time, the Mongolian generals rejoiced in their hearts, if they fought like this, they would definitely be able to keep the southern barbarians out of the Great Wall.

There was a sharp pain in the center of the eyebrows and chest at the same time, and the eyes of the Mongolian generals were dark, and they didn't know anything.

The three Song Army snipers put down their Type 22 rifles and asked the observers around them, "How is it, did you hit?" ”

"Shot in the chest."

"Shot in the forehead."

"I wasn't shot in the neck."

The observer gave the answer based on his own observation position.

"It must have been me in the head." A sniper said happily.

"We shot together, how do you know you hit it?" Immediately, other snipers offered a different opinion.

"Stop fighting!" The captain of the sniper interrupted the argument, "We are a team of three, and the credit is naturally shared by everyone." But is that Mongolian officer really the head of the Mongolian army on the other side? ”