The Jiaozhou Academy of Sciences roughly divides the research of thunderbolts into two directions, one is for defense and the other is for offense. Thunderbolts defending cities require long range, great power, and durability. Siege Thunderbolts need to be portable in addition to their power requirements. In addition to making achievements in these two directions, Ma Jun also tried his best to simplify the manufacture of thunderbolts. The drawings in Jia Xu's hands are a kind of simplest thunderbolt, although the service life is not as good as that made in Jiaozhou, but the advantage is that it can be built at any time, and it does not require craftsmen to have too high a level.

Nan Ye was overjoyed when he got the drawings, so he ordered his soldiers to cut down wood and prepare to attack the city. Shi Weikang, the Xiliang thorn in the city, saw that the soldiers outside the city were very anxious to build siege equipment, so he summoned the generals to discuss countermeasures.

In addition to joining the army Yang Fu, Han Sui's old generals Yang Qiu and Hou Xuan, and Fuyi's general Jiang Xu are all in the city, as well as the commanders Yin Feng, Zhao Ang, Liang Kuan, and Zhao Qu are all generals who can conquer and fight habitually, and seven Yang Fu disciples also came to help in the battle.

Wei Kang asked the generals: "Now that Nan Ye is building equipment outside the city to prepare for the siege of the city, can the princes have a strategy to defeat the enemy?" ”

Yang Fu said: "I see that there are about 50,000 soldiers in Nanye outside the city, which is not more than the soldiers in my city. Even if we build siege weapons, they are just chariots, ladders, etc., as long as we strictly defend the city, we don't have to be afraid. When Nanye runs out of food or Xuchang reinforcements arrive, the siege of Jicheng will be relieved. ”

Nan Ye and Ma Chao's meticulous work could not sneak attack the city gate because there were many soldiers and horses in the city, and it was difficult to make a small amount of meticulous work. Yang Fu suggested that defending the city was also a safe method.

Yang Qiu and Hou Xuan knew that Ma Chao was powerful, and they didn't dare to go out of the city to fight, and they all agreed with Yang Fu's intentions. However, Jiang Xu, the general of Fuyi, did not take the soldiers and horses outside the city in his eyes, and said: "Yishan's words are fallacious. Since there are no less soldiers and horses in the city than outside the city, why don't you go out of the city to meet the enemy? ”

The surname Jiang is the surname of Xiliang, and Jiang Wei, who was not born at this time, and his father Jiang Jian are both of the same clan as Jiang Xu. Yang Fu didn't dare to ignore Jiang Xu's opinion, and patiently explained: "Nan Ye has not tasted defeat in the southern and northern wars since the Yellow Turban Rebellion, and Dong Zhuo and Yuan Shao died at his hands. In this battle, Ma Chao was used as the vanguard, and Prime Minister Cao Cheng was killed by him, and the people of Xiliangqiang all surrendered to the wind. Hugh said that the soldiers and horses of our wait are not far from the soldiers and horses of Nanye, even if there are more soldiers and horses, I am afraid that they are not opponents, and it is better to take advantage of the city. ”

Yin Feng was under the jurisdiction of Jiang Xu, and after listening to Yang Fu, he said: "Yang should not join the army to grow the ambition of others, Nanye Ma Chao is difficult to defeat, and we can still use it to take it." Even if they can't win a battle, it's not difficult to send some soldiers and horses out of the city and destroy their equipment at night. ”

Jiang Xuwen laughed when he heard this: "This is exactly what I want!" Instead of sitting back and watching Nan Ye build equipment outside the city with peace of mind, it is better to go out of the city and destroy it first. It would be beneficial for us to delay for one more day. ”

Wei Kang listened to what Jiang Xu said, it was not unreasonable, since he had already made up his mind to defend the city and delay the time, of course he hoped that Nan Ye would attack the city as late as possible. So Wellcome asked the generals, "I wonder who wants to go out of the city at night to fight?" ”

Jiang Xu arched his hand and said: "The last general is willing to go!" ”

Zhao Ang, the commander of the army, said: "Kill chickens with a knife? There is no need for a general to go out, and the last general is willing to go to the first battle. ”

Yang Fu saw that the generals were vying for the first place, and he also felt that this method could be tried, even if he lost some men and horses, it would not affect the defense of the city. However, he still carefully reminded: "Generals, don't underestimate the enemy, you can lead your cavalry to go back as quickly as possible, and only burn the equipment, and you don't have to fight." ”

There was no shortage of cavalry in Xiliang, and after some discussion, they decided to order Yin Feng and Zhao Ang to command 2,000 cavalry, each with a bundle of hay, and go out of the city at night to burn the siege equipment that was being built.

Nanye's army was stationed outside the east gate of Jicheng, but Yin Feng and Zhao Ang took advantage of the dark wind to lead the troops out of the west gate, and then made a detour and dived to the rear camp where Nanye built a thunderbolt.

Yin Feng and Zhao Ang thought they were acting secretly, but they didn't know that Nan Ye had secret sentinels inside and outside the city. Although the detailed work in the city could not leave the city to report the news because the soldiers and horses went out of the city after dark, the scouts outside the city saw that the city gate was opened, so they returned to the camp to report to Nanye.

In order to quickly report the news, Tanma did not wait for all the soldiers and horses to leave the city, so he didn't know how many troops Yin Feng and Zhao Ang had brought in, nor did he know the direction of their attack. But they don't need to know, because with Nan Ye here, everything is not a problem.

When Nan Ye heard the news, he immediately ordered the soldiers to gather urgently, and then displayed a series of skills such as star-seeking, star-seeking, soul-seeking, and positioning, so as to have a full view of the number of soldiers and horses leaving the city, the direction, and the people leading the troops.

Will star record: Yin Feng, the word Zeng. At the beginning, he was the captain of the Licheng Commandery. Ma Chao killed Shi Weikang in Liangzhou, and Yin Feng conspired with Liang Kuan, Zhao Qu, Zhao Ang and others to avenge Kang and raise troops to attack Ma Chao. Ma Chao washed the city in blood, Yin Feng's whole family was killed, and after Xiahou Yuan led the army to, Ma Chao abandoned the city, and Yin Feng was the Dunhuang Taishou.

Will star record: Zhao Ang, the word Weizhang, Tianshui Jiren. Cao Cao's subordinates at the end of the Han Dynasty. At the beginning, it was the Qiang Dao Order, and then he lived in the state to govern the city. After Ma Chao captured Jicheng, he took his son Zhao Yue as a hostage, Zhao Ang was unmoved and his wife Wang Yi held on for thirty days to Xiahou Yuan's rescue troops to relieve the siege, and his son Zhao Yue was finally killed by Ma Chao.

Although Nan Ye estimated that Yin Feng and Zhao Ang had about 2,000 cavalry, because they walked around the city, Nan Ye could not determine where the two were going to attack the camp, and could not arrange ambushes, so he could only order the men and horses of each battalion to be on guard.

When Pang Tong and Jia Xu heard that the enemy army had 2,000 men and horses, they knew that they were not attacking in an all-out way, so they focused on deploying defenses at key positions such as the Chinese army tent and the grain and grass storehouse. The artisan camp where the thunderbolt cars are made is also one of the key protection objects.

Yin Feng and Zhao Ang took advantage of the night, and the people were holding grass and horses, and the invisible sneakers approached Nanye's camp. I saw that there was no movement in the pitch black camp in the camp, and the thunderbolt frame erected high in the back camp just pointed out the direction for the two of them. The two of them looked at each other and saw the joy in each other's eyes, and they both thought that Nan Ye was defenseless, so they took the lead and launched a charge.

In order to ensure that the march was not detected by Nan Ye, the two thousand horsemen did not let the horses run with all their might, but only walked slowly. At this time, they received military orders, and they spurred their horses to speed forward. But before the speed of the war horse was raised, he heard a drum in the camp opposite, and then heard the sound of "whoosh~" breaking the wind.

Yin Feng and Zhao Ang knew that it was not good as soon as they heard the news, and it was obvious that the battalion had taken precautions and began to release arrows. Although it is impossible to aim the arrows accurately in the dark in the middle of the night, the attacked party cannot take precautions because they cannot see the direction of the arrows. In this case, Yin Feng and Zhao Ang couldn't dial Diaoling, so they could only use a stirrup to hide in their own area to minimize their own area, so as not to be shot by random arrows.

The two main generals were good enough to ride and react quickly enough, but the two thousand horsemen were not so lucky. These Xiliang cavalry are not Ma Chao's Xiliang iron cavalry, the thickness of the armor on their bodies is limited, and they are not equipped with large shields. After a rain of arrows, hundreds of people fell from their horses.

"Back to the horse!" "Withdraw!" Yin Feng and Zhao Ang were also alert, and found that Nan Ye had already prepared and ordered the withdrawal of the army at that time. But military orders are one thing, and their implementation is another. If the war horse that has just raised its speed wants to slow down and turn back, there must be a buffer time.

The camp tent of the commander of Nanye has Zhang Liao, Dian Wei, and Zhou Cang, and the baggage is guarded by Ma Chao and Pang De, and at this time it is Zhao Yun and Yang Xiong who are guarding the thunderbolt camp. Zhao Yun's archery skills are superb and his eyesight is excellent, even in the dark night, he can roughly see the movement of the opponent's soldiers and horses, when he found that the other party wanted to withdraw the army, he shouted: "Put the rocket, put the crossbow!" ”

With Zhao Yun's order, the guards who had shot arrows just now replaced them with special rockets and shot them out in one go. During the Three Kingdoms period, ordinary rockets were tied to arrows with oilcloths and other ignition objects, and they were fired at the same time. The special rocket made in Jiaozhou is equipped with an ignition similar to the match head on the arrow shaft, and the ignition of the arrow can be ignited as long as the arrow shaft is rubbed, saving the ignition time. This is also because Pang Tong and Jia Xu have been prepared for a long time, knowing that if the enemy chooses to sneak attack grain and grass and thunderbolt carts, they will inevitably carry hay and set fire, so they specially arranged rocket soldiers here to restrain them.

Jiaozhou's special rockets are not only convenient to ignite, but also unique in ignition, which has used saltpeter, sulfur and other materials. Although these minerals are not of high purity and are not good enough for explosives, they are enough to ignite fires. I saw that after the rocket was fired, the fire was not very bright at first, but when the arrow flew into the wind, the arrow quickly burst into flames, emitting a dazzling fire. The cavalry led by Yin Feng and Zhao Ang suddenly revealed their figures in the flames of the sky.

The main purpose of rockets is usually not to kill enemies, but to ignite and, of course, illuminate. When a large number of horsemen appeared, the crossbows that had been prepared were aimed and fired. Unlike the first round of dark night arrow rain projectiles just now, the pursuit of accuracy in this round of crossbow shooting, with rocket lighting, almost every crossbow arrow has been captured, and hundreds of people and horses have been shot again.

Soldiers who are shot through by a strong crossbow are often fatal with a single blow, and they die a relatively happy death. The hay they were carrying was instantly ignited by the rocket, and even the men and horses turned into fireballs and burned, and the smell of barbecued meat was burned, and the screams and wails were endless. Even though these soldiers who were shot by the rockets were only a few, the tragic death still terrified the rest of the cavalry.

Zhao Yun also raised the Falling Moon Bow under the light of the rocket, aiming at Yin Feng who was hiding in the stirrup is arrow. It stands to reason that Zhao Yun's archery skills are a little worse than Huang Zhong's, and it is no problem to shoot a big living person. But Yin was ordered to be big, and he was not shot to death. It turns out that the equestrian technique hidden in this stirrup requires the whole person to be attached to the horse's belly sideways, and the saddle stirrups are hung by the strength of both legs, which can be used for a while but cannot last long. When Zhao Yun shot an arrow, it happened that Yin Feng turned over his horse and resumed his riding posture, but he just dodged Zhao Yun's arrow.

Yin Bong dodged the arrow, but his horse was unlucky. After Yin Feng turned on the horse's back, the place where he was hiding just now was the horse's belly, and the arrow was shot directly on the horse's belly. The war horse stood up and screamed violently, and directly threw Yin Feng, who was unprepared, off the horse.