However, for the gracious invitation of these people, ? ?. ｒ?ａ?ｎ?? After all, after all, after he sent this artillery, he had to go back and continue to make other artillery. It can be seen from the news sent to him by Song Cai before that the day when An Lushan will send troops is probably not far away.

Therefore, Lu Chen must now hurry up and use this artillery to defend the Holy City and Luzhou City. Only when the defense systems of the two cities under his jurisdiction are perfected, can Lu Chen be able to deal with civil strife with confidence and further compete for the world.

Therefore, after Lu Chen handed over this cannon to the city guards of the Holy City, he first taught them how to use the cannon. The use of artillery is simple, it is nothing more than loading shells, then gunpowder, and finally lighting the primer of gunpowder. The only thing that requires some skill is to determine where the shells landed.

Lu Chen, along with the city guards of the Holy City, transported this bulky gadget onto the city wall.

Lu Chen then loaded the bottom end of the cannon with gunpowder, but instead of putting a bomb in the barrel, he loaded a round stone, which was very similar to a real cannonball in terms of size and weight. This stone was made by Lu Chen according to the cannonballs he made, according to the ratio of one to one. The purpose is to allow the user to use this stone for training, and finally accurately determine the location of the bomb.

After all, they can't always hold real shells for soldiers to train. Not to mention the cost, just the power of the cannonballs is likely to be able to blow out large craters outside the Holy City.

When Lu Chen filled the large round stone into the barrel, he carefully lit the fire. Before the surrounding soldiers could react, a loud bang was heard coming from the artillery. Frightened, these people hurriedly retreated, and some even fell to the ground.

After all, this loud bang without warning is really scary. However, when they retreated, they were shocked to find that the large round stone had been shot diagonally into the air in front of them, and finally landed far outside the city. Seeing this scene, people's eyes are lit up, and this distance is eight hundred or even a thousand steps!

Subsequently, under the guidance of Lu Chen, several soldiers also nervously stepped forward to learn to use an artillery. These men who are usually fierce on the battlefield are like weak women and children at this time, and every action is extremely careful, and Lu Chen, who sees it, can't help but kick them out of the city.

However, in the end, Lu Chen still resisted this impulse, after all, these people had seen this thing for the first time, and they had never even heard of it before, so it was understandable that they behaved like this.

After seeing that most of these soldiers had learned to use artillery, Lu Chen told them some more things, and then pulled the carriage and walked back with the two men. He still has a lot of artillery to make, and the Holy City alone needs four, which is still according to the smallest estimate. That is, one gate was installed at each of the four gates.

And the huge city of Luzhou, not to mention. I'm afraid that eight cannons will not be able to defend the city on all sides. Therefore, Lu Chen's time is very urgent. However, the only thing to be thankful for is that since this cannon has been made into one, the remaining artillery only needs to be copied according to this model, and there is no need to study and try.

Therefore, Lu Chen, who returned to Chang'an City, began to make it day and night. The second gun took only three days to be made. And after this cannon was made, Lu Chen did not follow him to the Holy City again. He just sent the same two guys last time to transport the artillery over. And Lu Chen himself continued to make the third cannon in this remote house.

Time passed, and I don't know if more than a month had passed. In the past month or so, Lu Chen has produced a total of nine artillery pieces, and only one of them is a failure. Lu Chen had now defended all the surrounding areas of the Holy City, and even the huge Luzhou City was only four pieces of artillery.

During this period of time when Lu Chen was hurriedly making artillery, the forces in the court had a big change.

Unexpectedly, the Yang family has become the most prestigious family in Chang'an City, and the current Yang family cannot be compared with any family. It is not an exaggeration to say that their family has now manipulated the government. After all, Yang Guozhong alone is just holding dozens of important positions in addition to the post of prime minister.

Whether it is a major event in the DPRK or in the local area, it must go through his hands before Tang Xuanzong can know. If it is an event that is unfavorable to him, Yang Guozhong will directly leave him privately, and then secretly investigate who is going to do something unfavorable to him. Once the investigation is clear, he will immediately deal with the man, both openly and covertly.

It can be said that everything that Tang Xuanzong knows now has been screened by Yang Guozhong. Yang Guozhong alone has already controlled the government. Coupled with the Yang family of Mrs. Han, Mrs. Qin Guo and so on, this court has become the court of the Yang family.

Even a month ago, the crown prince Li Ying suddenly died violently. Although the imperial doctor in the palace claimed that the prince died because of an incurable disease. But everyone knows that this prince Li Ying has always been at odds with the Yang family. After all, according to the current situation, I am afraid that it will not be long before this court will become the court of the Yang family.

As the successor of the Li royal family, Li Ying naturally wanted to keep his position, and there was no surprise that the two sides confronted each other. However, Li Ying's sudden death this time shocked everyone. However, even people are very suspicious of the cause of Li Ying's death. But at this juncture, no one will provoke the Yang family in order to investigate the cause of Li Ying's death.

After Li Ying's death, it didn't take long for Tang Xuanzong to announce that Li Heng would inherit the crown prince. It is said that after Li Heng became the crown prince, the Yang family also deliberately went to find stubble a few times. However, this Li Heng did not have the slightest sign of fighting back, and he had been silently enduring the bullying of the Yang family.

Seeing that Li Heng was so 'honest', the Yang family let him go for the time being. However, after knowing this rumor, Lu Chen sneered. Lee is not as honest as he seems. People who are really scheming often don't show it on their faces.

However, Lu Chen didn't care about the struggle between the forces in the court, but concentrated on making his own artillery. Only by turning one's own territory into an impregnable wall is the last word. What kind of power and what scheming, in the face of real strength, is just a floating cloud......

(To be continued.) )