Luo Bo suddenly had a worse premonition, "If they form an alliance, the consequences will be even more serious, after all, now the overlord's territory is the largest, although the relationship between the three parties is intertwined, but Liu Bang knows that Xiang Yu is his biggest enemy, and Sheji is also bent on destroying Xiang Yu." ”

And there are Chen Ping and Sheji in the other camp, if they really join forces, Zhang Liang, Cao Shen, and Xiahou Ying will also come, it will be even more terrifying.

In fact, in order to confuse us, they are very likely to form an alliance!!

Robb is light and breezy on the surface, but he is turbulent inside.

It takes a person to think about it carefully, Sheji will definitely attack to the death, after all, Liang Jun's life or death has nothing to do with her, and the Han army will definitely cooperate.

This old witch, who wanted Xiang Yu to die, actually begged for an alliance with the Han army.

Robola came to the map, Jinan, Chengyang, Jingzhou, Pengdu, Xiangyang... Those thick defensive strongholds were all circled by him and connected in a line.

Fighting and retreating, consuming the enemy's army, it's a pity that only one of the grain and grass sent over was burned, but it's a pity, it's shameful to waste food. . .

Looking at the full moon in the sky, Robb suddenly had a plan, quickly pulled out a pen and paper, drew a pattern, and asked Tian Heng to find all the craftsmen and rush to make it overnight.

All cities in Qidi resisted, although the final result was that the city was broken, but it could delay the arrival of the enemy, Xiang Yu did not let him study, resisted the enemy in every city, and waited until the day the city was broken, and then to the next city, not allowed to fight, just run.

A month has passed, Xiang Yu actually ended up with a reputation of "Xiang Run", but fortunately, Rob asked Xiang Shaolong to follow with a "teaching whip", if he wanted to go out of the city and be tough, he would beat him with a stick. on the shares.

At this time, Xiang Yu ran back to Jinan, and first poured a few mouthfuls of water, "Sir, it's enough time to stop them for a month!" ”

"That's enough."

At this time, Xiang Yu saw that the city tower had changed greatly.

In the center of each gate of the city wall, there is a city tower, which is a delicate and beautiful high-rise building on the top of the city wall, which is an important high-altitude defense facility of the city during the war. On the outside of the tall wall, at certain distances, there will be a section protruding from the outside of the wall, which is the horse face (also known as the enemy platform, pier platform, wall platform). There are two types of horse faces: rectangular and semi-circular, and the use of horse faces is to interact with the city walls, eliminate dead spots under the city, and attack the enemy from three sides from top to bottom. Its general width is 12~20 meters, protruding from the outer surface of the wall 8~12 meters, and the spacing is 20~250 meters (60 steps to stand one, jumping out of the city, not reducing two zhang, wide and narrow with the location is uncertain, both sides look directly at the corner of the city, there are buildings on it. "In the era of cold weapons, this distance was exactly within the effective range of the bow and arrow sling.

And there is a huge trebuchet on the castle tower, which is quite spectacular!

There were huge bows and arrows between each battlement, and Tian Heng pointed at them, "This is a repeater designed by Mr., I have tried it, and it is very powerful." ”

Xiang Yu was amazed, looked outside the city, and saw a small city, Tian Heng explained, "Mr. said that the big city should set up an urn city. Urn city is built outside the city gate of the small city, also called the moon city, is a small city designed to defend the city gate, even if the enemy army breaks through the city gate of the urn city, there is also the main city gate defense, because the place in the urn city is narrow and not easy to carry out a large-scale attack, delaying the enemy's attack speed, and the defenders at the top of the city wall can condescend to shoot in all directions, to give the enemy a fatal blow, is the so-called closing the door to beat the dog, the urn to catch turtles. ”

Outside the moat, there are three or four artificial obstacles, mainly thistles, antlers, horse pits, horse guns, etc., the purpose of which is mainly to prevent the enemy army, especially the cavalry troops, from approaching.

Looking at this lethal weapon, Xiang Yu saw a big mallet perpendicular to the city wall, so thick... It's so big... There's still particles on it...

"This is a wolf's tooth racket, and the wolf's tooth racket is five feet long. The elm plank, which was four feet five inches wide and three inches thick, was nailed with 2,200 iron nails with wolf's teeth five inches long and six taels in weight, and a blade was mounted on each side to strengthen the lethality. When the enemy army is attacking the city, the defenders use two sets of ropes to lift the paddle face perpendicular to the city wall, and when the enemy army climbs under the paddle, they suddenly lower it to produce the most lethal damage. As for the enemy's siege chariot (also known as the wooden donkey cart, the four-wheeled cart has a wooden frame on it, covered with cowhide, and can accommodate 10 people underneath, just like the ancient wooden armored car), the defenders will use a weapon called iron to hit the wood to destroy it. The iron head is composed of six iron blades, each one foot (about 30 centimeters) long, resembling a large wolf's tooth nail. Destroy the top of the siege vehicle through a huge impact force, and then throw rockets to burn the destruction.

Robb pointed to the well under the castle tower, "The siege troops often use artillery carts to throw incendiary bombs into the city, so fire prevention measures on the city walls are also very important. "Mud-proof fire" and "more water equipment". I asked for two water bags for a city gate. The water bag is made of the fur of cattle and horses, and can generally store three or four stones, and the water outlet is a thick bamboo pole that is opened in the middle and about one zhang long, and it is used as a fire hose. In addition, at that time, a kind of pump that can push and spray water was also invented, and when there was a fire in the castle tower or war tent on the city, a group of three to five people immediately lifted the water bag to fill the rescue, which was quite efficient. If the enemy starts a fire under the city, a special water bladder made of pigs or cows is thrown into the fire, and the water breaks out. In the event of an oily combustible, the defenders would also use a large linen (similar to a modern mop) dipped in mud to extinguish the fire.

Xiang Yu looked at these tools to defend the city, "Sir, even if it's me, I can't capture this city!" ”

Luo Bo smiled slightly, "Not only this city, but also on the retreat line, every big city, I urge it to be like this!" ”

"I'm going to see if they can beat me back to Jiangdong, or if I can wipe them out gradually!"

"Sir, it's really a god!"

"If the city falls into the hands of the enemy, we must destroy these tools, otherwise, when we return, we will attack ourselves with something of our own design!"

Everyone nodded.

Robb took out a cigarette and gave it to the generals and princes, those people were all eye-catching, this thing was a magical thing, everyone had only smoked it once, this time Robb lit a cigarette for everyone, sat on the city tower together, and arranged their respective duties and guards.

Xiang Zhuang himself was an assassin, flexible and quick-witted, and the urn city was handed over to him, and Robb designed a set of wrist crossbows for his men and horses, which were lightly armed and mobile, constantly harassing the besieging troops, at this time the earth began to tremble, and dust flew in the distance。。。。。

They're coming!!!