Although it is also a catapult, it is completely different from the current improvement of Cangguo, and it is very different in structure.

The most obvious thing is that before the Tang and Song dynasties, catapults were rarely used for siege warfare, and their functions were similar to arrows, until the Song and Yuan dynasties, the performance of catapults was greatly improved, and ordinary city walls collapsed as soon as they were smashed.

The army led by Genghis Khan was generally cavalry, and it was with this greatly improved siege vehicle that swept across the Eurasian continent.

The trebuchet made great contributions to the Mongol army's conquest of the world, and after the defeat of the Jin State, the Mongol army began to attack the Song Dynasty on a large scale, and was stubbornly resisted by the Song army on the front line of Xiangyang and Fancheng.

In the Battle of Xiangfan, the Yuan army besieged the city for five years, but it was never able to conquer it, and later attacked Fancheng with a giant counterweight trebuchet and won in one fell swoop.

Then, the Yuan army moved the cannon to Xiang *** According to records, the firing distance of the stone projectile is not less than 500 meters, and it can enter the ground seven feet, which means that the depth of the pit on the ground reaches more than two meters, which is already an ultra-long-range strike in the era of cold weapons.

In this way, many generals of Xiangyang City surrendered one after another, and the Battle of Xiangfan, which had lasted for five years, ended with a roar of trebuchets.

After that, the Yuan army used this powerful trebuchet to continuously expand the results of the war. The Yuan army crossed the river, the Song soldiers Chen on the south bank of the river, the boat division met the battle, the Song army was all sunk by stones, in just a few years, the results of the battle were expanded to Hunan and Guangxi, in the decisive battle of the Yuan army, the trebuchet has made great achievements.

What the Cangjun currently has is such a siege vehicle, which is different from the previous simple structure and simple catapult that can be built at any time, its construction is very complicated, and the materials used are all decades of old wood, and it has been soaked in water, which is extremely strong.

It is assembled by skilled craftsmen before it can be transported to the front line.

It can be said that the significance of the new catapult is equivalent to the cavalry that appeared before.

Of course, in addition, Cangguo is not without other sharp weapons, but compared to the new catapult, it is not so outstanding.

For example, siege towers, which are short-range siege machines.

Move siege towers closer to the walls, and lower a ladder from the top of the tower to the top of the wall so that the soldiers in the tower can rush out of the ladder to engage the defenders in hand-to-hand combat, each of which is huge, protected from flames by moist hides.

Due to its heavy weight, it moves slowly, so it is erected on a stake with pulleys and moved forward in a push-pull manner to bring it close to the base of the wall. When pushing and pulling, the ground in front of you must be prepared in advance, and thick wooden planks should be laid on the muddy ground as a road surface to facilitate movement.

When the siege tower is close to the wall, the archers will fire their bows and arrows into the city from the battle zone at the top of the tower, and as soon as it is close to the wall, the soldiers inside the tower will step on the wall from the steps inside the tower.

However, it has a characteristic that the enemy is very aware of its threat, and will have a lot of time to prepare for the enemy when the siege tower moves, the defender will go to the most threatened part of the wall, or prevent the ladder from being lowered, and when the siege tower approaches, the defender will try to grab and try to push away.

What the besiegers could do was to slam the attackable parts of the city walls at the last moment of the assault to distract the defenders from preparing for the assault. If the first group of siegers were to be knocked down from the tower, a steady stream of soldiers would pour out from behind the ladder to complete the task of capturing the city.

In addition to this, there are cave cars and goose cars.

Cave car, is a kind of mobile trench filling car, the top cover of the car is covered with thick leather to prevent arrows from shooting guns or even rolling wooden stones, in order to prevent fire, the leather is brushed with thicker mud, when the two sides are evenly matched, there is a kind of car in front of the cave car to do mobile cover, can also be directly pushed to the city gate for impact destruction.

The goose cart is a mobile trench cart with both defense and defense, the upper tower can use bows and arrows to attack and cover, and the lower carriage has a special person to pile the wood and stone sandbags and other fillers into the trench to facilitate the infantry to climb the city.

When advancing, two to three people in a row, the outermost person also needs to hold a shield, several rows in front and back together to push the chariot forward, from a distance on both sides of the chariot there are many round shields stacked like wings, and the arrow tower is quite slender and tall, so it is called the goose chariot in this shape.

These siege weapons have been developed two years ago, relatively speaking, they are not as domineering as the new version of the siege vehicle, as a hidden war card, the last military parade was not displayed in front of the Emperor Shengguo.

It's just that Yang Mu never expected that Emperor Shengguo would go back and do a sensational event.

On March 17, Emperor Min Lei of Shengguo issued an edict and passed on the crown prince Min Shanyi!

Min Lei himself, became the emperor!

It is said that at that time, the Shengguo court was in mourning, and the crown prince Min Shanyi was crying and crying, and he was unwilling, so he took such a throne in desperation.

The news spread to Cangguo, leaving countless people stunned.

It's really ridiculous!

Isn't there an example of abdication as the emperor in various countries, let's just say that the overlord of the Jin State has also had the emperor, but it was all decided when the emperor was old and unable to handle political affairs, and he officially retired to make such a decision, which was a real abdication to make way for the country.

Sheng Huang Min Lei, everyone knows that he has only succeeded to the throne for seven or eight years, and he is not yet forty years old, and he is still in a state full of blood and energy, and there is no ambiguity in handling state affairs, on the other hand, the crown prince Min Shanyi, who is only twenty-one years old this year, has just learned to deal with national political affairs, and needs to be honed.

At this time of internal and external troubles, how can the old emperor be skilled when he ascends the throne as an emperor?

For an emperor like Min Lei, who said he would abdicate, as long as anyone heard about it, they were all surprised.

Perhaps, he is the youngest emperor of the kingdoms of the Dali Dynasty.

What was the purpose of his abdication?

Everyone can more or less guess some, it is undeniable that the pressure from Cangguo is an extremely important point, after all, in the current situation, Sheng Guo is about to face the situation of the country being ruined, as the emperor of a country, it is very difficult to escape.

It's different if he becomes the emperor, his political influence will be much lower, even if he is exiled to another country, Cangguo will not have much effort to grasp it.

Of course, although Yang Mu was very surprised by this news, it seemed reasonable to think about it carefully.

Historically, wasn't Song Huizong frightened in Jinying, and then immediately after returning to China, he gave the throne to his son?

This trick of evading responsibility can be seen through by him at a glance.

It's just that later the Southern Song Dynasty perished, and the two generations of emperors also became captives, dying in a foreign land.