At present, all the artillery used by both the enemy and us is the so-called "Fran machine gun", which was used by the Europeans in the 14th and 15th centuries, and it is obviously a relatively backward thing.

At the end of the 17th century, the Europeans invented the howitzer - that is, the blueprint of the howitzer drawn by Li Li was really the world's leading mass killer.

A howitzer is a field gun with a shorter barrel and a larger caliber, mounted on a two-wheeled gun carriage. This type of gun has a short tail and therefore a larger angle of fire, and its barrel is shorter and lighter than that of a long gun or artillery, and longer than a mortar. In this way, the trajectory is lower and the accuracy is higher. The advantage of the howitzer is that it has more attacking firepower, a lighter gun body, and therefore greater mobility. Where it is possible to attack with shells and where obstacles need to be cleared, howitzers are superior to cannons.

Zhang Li was a military fan in later generations, and he still knew the basic structure of artillery. In fact, Zhang Li also drew a drawing of a mortar, but at present, the Tuanshan Fort Arsenal does not have the ability to develop two types of artillery at the same time, so Zhang Li chose to develop howitzers first.

The artillery used by our army in the Liberation War in later documentaries is almost all howitzers. And the kind of artillery called "small steel cannon" commonly used by Japanese soldiers in field battles in film and television dramas is mortars.

The howitzer has a long range, great power and high accuracy, so it is naturally the first choice for tension.

But the mortar is not without its advantages, although it has a short range and low accuracy - but it has an advantage that howitzers cannot match, it is projectile.

The simple analogy is that howitzers blast through enemy walls, crushing everything into powder - while mortars go over walls. Directly bombard the enemy's living forces in the city.

The current city walls are far less solid than the reinforced concrete fortifications of later generations, so howitzers are naturally the first choice for tension. What I want is the momentum of a thousand cannons!

However, the howitzer of the Tuanshan Army is still under development. Although the finished howitzer was made a month ago, many problems were found. Song Yingxing is leading people to work overtime to improve the process!

Howitzers, rifled guns, and mini bullets are the number one secret of the Tuanshan Army at present, and Zhang Li naturally does not say a word to anyone.

In this battle, howitzers, of course, cannot be counted on......

Zhang Li retracted his thoughts, glanced at everyone, and asked Gao Yuanliang: "Old Gao, is the number of siege shield vehicles of our regimental mountain army enough at present?" ”

Whether it is attacking the city or the enemy, it is necessary to approach the city under the cover of the shield car, so the tall wooden shield car is the most needed thing for the siege.

Gao Yuanliang frowned, shook his head slightly, and said, "My lord." In the previous attack on the Acropolis of Haizhou, half of our army's shield vehicles had been consumed -- although the shield vehicles from Jinzhou, Fuzhou, Gaizhou, and Jinzhou had been replenished in the past few days, it was not enough for 30,000 people to attack the city! ”

Zhang Zhang nodded, and after a moment of silence, he made a decisive decision: "There is no need to do anything in the past few days, all the officers and soldiers of the Tuanshan Army have built simple shield carts - there are many forests nearby, and there should be no shortage of wood." ”

The generals immediately agreed in unison, but Lu Xiangsheng, who had not spoken alone, spoke: "My lord, now the soldiers can only build simple shield vehicles. The degree of solidity is worrying, I'm afraid I can't protect the infantry! ”

Zhang Zhang smiled slightly, nodded and said, "Of course I know this." I have my own strategy, and you do what I say. The day when the Easy Shield Car was built. It is the period of conquering the Acropolis of Haizhou! ”

Lu Xiangsheng saw that Zhang Zhang was so confident, so he couldn't persuade him, and his doubts deepened: even if the number of simple shield cars made in the next few days was enough. But the protection is worrisome, and Zhang Dacai said that he can't let the soldiers die in vain. How can it be ...... now? This is contradictory no matter how you look at it!

……

Fuzhou and Gaizhou were lost one after another, and Haizhou was under siege. It soon spread to the Houjin State camp in Shunyi through the fast horses of Shenyang.

Jiannu, the second Mongolian Tartar, and the second Tartar of the Han army suddenly jumped for a while--because of the different positions, there was naturally a slight difference in reaction.

The most anxious person is, of course, the Jurchen, as soon as Huang Taiji heard the news, he even fell to the ground and fell into a coma for a full hour before waking up leisurely......

The Mongolian two Tartars have always been that urine, and it doesn't matter to hang high, anyway, what is Haizhou and Luzhou, even if it is Tianzhou, it has nothing to do with them. Now seeing that the Jurchen lair was being beaten, the Mongols naturally saw some clues, and urgently demanded that Huang Taiji withdraw his troops and return to Saiwai -- although the materials and population that had been plundered before were "cut off" by tension, but during this time, the Mongols had robbed a lot of things, and now they want to "settle in the bag for safety".

What hit Huang Taiji the most was not the loss of the rear city, but the Han Army Banner, which had never had problems before! Kong Youde of the Han Army Banner actually didn't contribute to the work, and faintly gave birth to the idea of preserving his strength - this Nima has paid it back?!

Therefore, on this day, Huang Taiji convened the Jurchen princes and ministers to discuss the meeting, and did not call Fan Wencheng, who claimed to be "Jurchen Zhuge Liang".

Fan Wencheng was very innocent and hurt, and it was estimated that one person was hiding in the corner of the wall to "secretly wipe away tears" - however, the other person was very happy, and he was naturally Dolgon, the owner of the White Flag.

The Jurchens deliberated behind closed doors, it was still in the time of the old Khan King Nuer Hachi, and now Huang Taiji has convened the Jurchens to discuss matters alone, how can Dolgon not like it?

However, after discussing for most of the day, the Jurchen princes and ministers had only one idea, that is, to immediately return to Liaodong, relieve the siege of Haizhou Wei, and kill the Tuanshan army in one fell swoop.

Huang Taiji was difficult to make a decision in his heart, and after hastily announcing the dismissal of the meeting, he subconsciously wanted to send someone to invite Mr. Fan Wencheng Fan to discuss, but Dolgon took the initiative to stay, saying that there was a good way to solve the siege of Haizhou.

After the rest of the people dispersed, only Huang Taiji and Dolgon were left in the big tent of the Chinese army. Huang Taiji looked at Dolgon, who had a humble face, and his mind couldn't help but drift a little farther away......

To put it bluntly, when he was plotting to seize the throne of the Khan, he bullied Dolgon's mother, Dafu Jin Abahai - after forcing Abahai to death with nonsense similar to Cao Gong of the Three Kingdoms, "Your wife and I support yourself, you don't worry about it", Huang Taiji has been secretive about this matter.

When he first ascended the throne, subconsciously, Huang Taiji felt that Dolgon was a threat to his khan, so he pressed him for many years, and it was not until Huang Taiji Khan's position was stabilized that he promoted Dorgon to be the banner master of the white flag.

Huang Taiji gathered his thoughts, glanced at Dolgon, and asked, "Dolgon, do you really have a plan to break the siege?" (To be continued.) )