Looking at the soldiers of the Zhao Army who were beaten to ashes again, and then had to withdraw their troops, Shi Min stood on the watchtower with a very solemn expression.

The war of Zhengliang has entered a tug-of-war, a protracted war, it is not that Zhao Guo can't afford to fight, Shi Min can't fight, but the price that needs to be paid for this protracted war is what Shi Min doesn't want to see.

Shi Hu is now mad, in order to weaken the luck of the Han family, he enslaved a large number of Han people, built palaces, and built large forest gardens, which was extremely luxurious! Not to mention, in order to conquer the Liang War, he also mobilized at least 300,000 people back and forth! It's full of Han'er!

It is conceivable that every month, at least thousands, if not tens of thousands, of young and strong people fall on the road to transport grain and grass, or die of hard labor, and I don't know how many people die of exhaustion.

The battle for Cool must end as soon as possible!

"Pass the order, the whole army will stop attacking!"

"No!"

As a last resort, before coming up with a countermeasure, Shi Min could only suspend the offensive against Lixuan City and besiege it without attacking it.

Subsequently, Shi Min gathered the craftsmen and some wrestlers who accompanied the army.

What does Shi Min want to do?

Back to the gun! That's right, Shi Min wants to build a return cannon!

Although Shi Min in his previous life was not a science student, he studied history and read through literature and science, and he was no stranger to the trebuchet at the pinnacle of production technology in the era of cold weapons!

The principle of the trebuchet is a lever, one end of the lever is placed with a cannonball, and the other end is pulled by a person with a rope to convert the energy of manpower into the projectile body through the lever.

There are many variants of this kind of cannon, and there are more than a dozen different styles of cannons recorded in the "General Essentials of the Martial Arts", including single-tip guns, double-tip guns, five-tip guns, seven-tip guns, tiger squat guns, column belly guns, whirlwind guns, combined guns, sleeping car guns, car guns, and gun cars.

The difference between these cannons is only due to their use and ability, the heaviest is the seven-pin cannon, which is said to be carried by more than 200 people at the same time to transfer their energy to the cannonballs. It can throw stone projectiles weighing 90 to 100 catties, which is very powerful.

As long as these different cannons and shells are uniformly designed and produced, the range and power can be fixed, which will greatly enhance the combat capability of the army.

The return cannon is accelerated by the lever - the re-system is a step further, using the gravitational potential energy to transfer to the shell body through the lever. That is, a very heavy counterweight is placed on the other side of the lever, such as a large frame of stones or a large piece of iron.

When firing the cannonball, the counterweight is lifted first, and the manpower or animal power is stored in the counterweight in the way of gravitational potential energy, and then falls down violently, and the gravitational potential energy stored by the counterweight is transmitted to the cannonball with the help of the lever, so the cannonball is more powerful, it is said that the return cannon can fire 150 catties of stone projectiles, and can smash the left side of the city wall out of the hole, this kind of thing is the form of the ancient war attack and defense of the city cold weapon developed to the peak.

"Boom! ...... "The improved trebuchet, the return cannon, is really powerful.

Three days later, the first experiment of the Huihui Cannon that had been built smashed a wall about the same thickness as the wall of Lixuan City!

"Good! Good! Hahaha! Shi Min smiled from ear to ear.

The generals present congratulated each other and celebrated with their crowns.

With this siege weapon, why can't you set foot on Lixuan City?!

Within a few days, Zhao Jun mobilized the manpower and material resources that could be used to build hundreds of return guns.

At the same time, the Eastern Jin Dynasty court, which was far away in Jiankang, was discussing the matter of Zhao's westward expedition.

Now the head of the Eastern Jin Dynasty is Sima Yue, and the original Jin Emperor Sima Yan died last year.

Sima Yan died in Xitang at the age of 22, nicknamed Emperor Cheng, temple name Xianzong, and buried in Xingping Mausoleum (now Jilong Mountain, Jiangning County, Jiangsu Province).

It is worth mentioning that since the Jin Dynasty crossed to the south, the Jin emperors generally did not live long, and many people died young.

Emperor Sima Rui of the Jin Yuan Dynasty reigned for six years and died at the age of 47; Emperor Sima Shao of the Jin Ming Dynasty reigned for four years and died at the age of 27. As for the first emperor Sima Yan, he was in power for 18 years, but he succeeded to the throne at the age of five, and he was only 22 years old when he died!

As the so-called lord is suspicious, the government has changed, and the Sima clan of the Eastern Jin Dynasty is mostly succeeded by young sons, so there are many ministers.

The fourth emperor of the Eastern Jin Dynasty, the word Shitong, the second son of Emperor Sima Shao of the Jin Ming Dynasty, the younger brother of Sima Yan of the Jin Cheng Emperor, and the mother of the Empress Yu Wenjun of the Ming Dynasty.

After Sima Yue succeeded to the throne by his brother Emperor Jin Cheng, he was named King of Wu. Later, he was renamed the evil king of Lang, and successively served as a free cavalry attendant, a hussar general, a waiter, and a Situ.

In the eighth year of Xiankang (342), Emperor Jin Cheng was seriously ill, and under the advice of Yu Bing and others, who were in power, he gave up his two sons and set up his younger brother Sima Yue as the heir to the throne. In the same year, Emperor Jin Cheng died and Sima Yue succeeded him.

At this time, Sima Yue was in the period of mourning and could not say much, and entrusted Yu Bing and He Chong to handle government affairs.

"Long live my emperor, long live, long live!" Facing Sima Yue, who was sitting on the dragon chair, all the ministers shouted long live.

"All the ministers are flat!"

"Thank you, Your Majesty!"

At this time, the chamberlain standing on the side of the majestic platform came out and shouted: "Something to start, nothing to retreat!" ”

Yu Bing was the first to stand up.

Yu Bing, whose name is Ji Jian, is a native of Yanling, Yingchuan (now Yanling, Henan), the son of Yu Chen, the prime minister's military advisor, and the younger brother of Yu Liang, the general of Zhengxi.

At the beginning, he was the chief of Wang Dao's Situ Mansion, moved to the domestic history of Wu, pacified the rebellion of Su Jun, and after the death of Prime Minister Wang Dao, Yu Bing worshiped the Zhongshu Jian and Yangzhou Assassin History, and the Inner Dynasty took power, and entered the left general, which contributed to the Jin Cheng Emperor's biography of his younger brother Sima Yue, in order to consolidate the power of the Yu family.

After Sima Yue ascended the throne, he worshiped Yu Bing as the general of the chariot cavalry, went out of the town of Jiangzhou to assassinate the history, fake the festival, and guard Wuchang.

Sima Yue can be "brother to brother", and when he became the emperor, Yu Bing can be said to have contributed indispensably.

In May of the eighth year of Xiankang (342), Emperor Jin Cheng was unwell.

On the fifth day of the first month of June, Emperor Jin Cheng's illness worsened.

At that time, the two sons of Emperor Jin Cheng, Sima Pi and Sima Yi, were young and still in infancy. Emperor Jin Cheng's uncle Yu Bing because his brother has been in charge of the government for a long time, afraid that after the emperor's generation, the relationship between himself and the emperor's relatives will become more and more estranged, so he is dissociated by others, often persuaded Emperor Jin Cheng that there are strong enemies outside the country, and should be canonized as an elderly king, and asked Emperor Jin Cheng to set Sima Yue as the heir to the throne, Emperor Jin Cheng agreed, so he issued an edict to establish Sima Yue as the heir to the throne.

Subsequently, Emperor Jin Cheng ordered Sima Xi, King of Wuling, Sima Yu, King of Huiji, Yu Bing, Zhongshu Ling, He Chong, and Shangshu Ling Zhuge Hui to accept the edict to assist Sima Yue.

"Your Majesty, the minister has something to do!"

"Please."

Sima Cheng and Sima Yue are brothers of the same mother, and his mother is the sister of Yu Bing, so Yu Bing is the emperor's uncle, and Sima Yue respects him very much.

"Your Majesty, Liangzhou Urgent!"

Yu Bing said solemnly: "Since the autumn of the eighth year of Xiankang, Qian Zhao has launched offensives against Liangzhou one after another, and they have all been resolved by the Liangzhou army one by one. However, this time Shi Hu Xing mobilized the people, with Shi Min as the general, mobilized two or three hundred thousand troops and hundreds of thousands of people, intending to occupy Helong and unify the north! ”

"Now Zhao has the potential of ten states, occupying the land of the Central Plains, with a million armor and hundreds of millions of people! With its national strength, there is no country in the world that can match it, if Zhao State attacks Liangzhou, all of which are based on Helong, and the Western Regions beyond Yumen Pass, his country will inevitably go to a higher level! At that time, Zhao Zhao will be strong, and I am afraid that it will sweep the world! ”

Hearing this, Sima Yue frowned and said, "Yu Zhongshu, do you mean, send troops to reinforce Liangzhou?" ”

There is a huge Zhao State between Liangzhou and the Jin Kingdom, which is thousands of miles away and beyond the reach of the whip.

Yu Bing immediately said: "Your Majesty, in order to destroy Liangzhou and occupy Helong, it can be said that the power of the country is overwhelming!" The country is empty, and the ministers ask Your Majesty to send a strong army to the north to attack Zhao, so that the head and tail of Zhao can not be taken into account, so that Shi Hu can withdraw to the Zhao army of Liang! ”

"Expedition to the North? This ......," Sima Yue hesitated.

Sima Yue has only been on the throne for a year, and his prestige is not very high, although he is not a puppet emperor, but the power is on the sidelines, and it seems that he will go out of the Northern Expedition, which is not something that he can decide at all.

If Sima Yue could be independent and autocratic, there would be no need to convene a court meeting to consult the opinions of the ministers.

In fact, since the Jin Dynasty crossed to the south, the Jin emperors have never had the supreme power that belongs to the emperor and belongs to the Ninety-Five. There is no way, even the first emperor of the Eastern Jin Dynasty, Emperor Sima Rui of the Jin Yuan Dynasty, was supported by the clans of Jiangdong, without the full support of these gate valves, the Jin family did not even have a foothold in Jiangdong!

Why did several Northern Expeditions of the Jin Dynasty end in failure?

It's not that the army of the Jin State is not strong enough, it is not that the soldiers are not brave enough, and the generals are not good enough, but that the Jin State lacks the most basic cohesion!

The power of the Jin family is held by the southern gate lord clan, who want to keep the power in their hands on the one hand, and on the other hand, they want to gain more power.

Therefore, the scholars in the south did not support the Northern Expedition and advocated living in a remote corner. Because they knew very well that once the Jin dynasty restored the Central Plains, the center of gravity of the entire country would return to the north, and the authority in their hands would inevitably be weakened at that time.

How powerful was the Beifu army of the Jin Kingdom?

In the original history, the Battle of Weishui, the 80,000 Jin army fought against the 800,000 former Qin army, and finally broke it, and its combat effectiveness can be seen.

"What do you think?"

Sima Yue was asking for the opinions of the ministers.

Sima Yu, the king of Huiji, was the first to come out and said: "Your Majesty, the minister thinks that this matter can be done!" ”

"Shi Hu is arrogant, boasting that his national strength is strong, but his eyes are empty! Zhao had just quelled the Shi Xuan Rebellion, and the war had just subsided, but Shi Hu's tyranny was intensifying! According to the minister's understanding, since the Shixuan Rebellion, Shi Hu will build a large number of buildings, build Luoyang, Chang'an two palaces, afforestation garden, expand the construction of the Zhanggong Temple of the 44 seats, labor thousands of young and strong, the Han people in the north are miserable, looking forward to the northern expedition of the king, regain the lost land, or return to the arms of my Han family, no longer the bloody! ”

"Now that Zhao is marching westward, the army of the country is overthrown, the domestic defense is empty, and there are many princes in various towns who support their own troops. If our Jin Kingdom sends tens of thousands of elite soldiers to the Northern Expedition at this time, we will definitely succeed in the first battle and recover the Central Plains! No matter how bad it is, it can make Shi Hu give up the matter of extinguishing the cold, so that Liangzhou is safe! ”

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Chapter 0186: Return to the Cannon