The combined forces of the Xi and the Ta tribes were forced by the Tang Dynasty to take the lead, because they were just cannon fodder for the servant army, and they didn't have to spend a pension if they died anyway. Therefore, it is also a very good choice to let them test the strength of the enemy. If you let your soldiers be tempted, you will not only have to sacrifice your own life, but also bear the pension after the sacrifice. This is why many governments like to use servant armies and even various consumables to siege cities. As for the next, that is, let the servant army of the Xi and the Yan tribe test the strength of this enemy, and then make some preparations.

"Woo woo woo ......" The combined forces of the Xi and Tatar tribes began to charge, and they were obviously going to attack the city first.

"Click!"

The combined forces of the Xi and the Yan tribe set up the ladder, and then prepared to climb up from under the ladder, because this is also a common tactic for siege. However, this tactic does not seem to be very useful, because the city wall of Liaodong City is very high, and the cloud ladder does not reach the top of the city wall for a while.

"Throw me rolling stones and wood, throw them all at me!" Yuangai Suwen shouted.

"Da!" "Da!" "Da!"

The rolling stone sasswood was thrown down as if it didn't need money, and as a result, the ladders were smashed.

The combined forces of the Xi and Tatar tribes in the back were still attacking the city, and this time they changed to a higher ladder and wanted to climb up. And the Goguryeo troops on the city wall were even more ruthless, and they directly took the gold juice and poured it down.

"Smash!"

A pot of hot gold juice was thrown and spilled, and countless allied troops of the Xi and Ya tribes were splashed with this golden juice and let out a miserable scream. The so-called gold juice is the dung water that has been boiled, and when it is splashed down, it can not only hurt the enemy through the boiling temperature, but also through the filth in the dung water to infect the wound, and then make the soldiers sick. It would be even more wonderful if it caused a plague in the enemy's barracks. So this golden juice can be said to be a very vicious weapon, and the armies of this Xi and Yan tribes have been injured a lot.

"Emperor of the Tang Dynasty. Can we call it in? The leader of the Xi clan asked.

But Li Shimin said: "Don't worry, attack again!" ”

At this time, the Xi people's simple catapults also began to work. The Xi found themselves unable to climb the ladder, and then they began to use catapults. In fact, catapults are not very unusual, many people think that Liu Ye invented them at the end of the Eastern Han Dynasty, but this is nonsense at all. Catapults are actually fixed catapults that originated in primitive societies, and then evolved into movable catapults. As for the catapult, it was invented as early as the pre-Qin period in ancient times, and the Chu army was also equipped with a large number of them. So, catapults are not unusual. Therefore, there are a small number of ethnic groups in places like the Tata.

Moreover, Datang's current trust in artillery is not high enough, and the cost of missiles is too large to be used to attack Jiancheng, so Datang is still equipped with catapults. But now the catapults have also been lent to the combined forces of the Xi and the Taya tribe to attack the city.

"Bump!"

A huge stone smashed into the walls of Liaodong City, but they found that the walls did not cause much damage, but the boulder was bounced up. This made them wonder that according to the previous situation, the city walls were also built with bricks. If such a big rock is dropped, it should have some effect. But now such a huge stone has no effect at all, which makes them a little puzzled.

"Good fellows. These grandsons actually used bluestone to make the city wall. Even if it's just the outer layer, I'm afraid it's surprising! An engineering staff officer of the service department of the Crusade Corps said in surprise.

And everyone was also shocked, these Goguryeo people were really crazy, and they actually used bluestone to make the city wall. Bluestone is also known as limestone. It can be said to be one of the hardest stones in ancient times. In ancient times, most of the city walls were built using bricks, and the bricks were also sintered through guò clay, which was not as hard as bluestone. And these Goguryeo people actually used bluestone to build the city. Even if it was just a layer of bricks, it was enough to make the Goguryeo walls much harder. So this catapult is not very useful for this kind of bluestone city wall at all, but the stones are all bounced up. Even if Datang is Chang'an, it is not so luxurious, because the cost of processing bluestone is very high. In ancient times, there were no explosives, and the mining of bluestone was very difficult, and the labor cost remained high. Therefore, even Chang'an switched to bluestone after the invention of gunpowder, because gunpowder can be used to obtain bluestone by blowing up mountains, which reduces the labor cost a lot.

"If you want to conquer this wall, I'm afraid you have to rely on human lives to fill it! It's a fucking turtle shell! Jingwen said with a sigh.

When the leader of the Xi clan saw this scene, he obviously immediately said, "Emperor of the Tang Dynasty, let's retreat quickly!" ”

But Li Shimin said: "Keep attacking, and see what means they haven't used!" ”

The leader of the Xi clan couldn't screw Li Shimin, and then he could only watch his clansmen's troops continue to attack, and then continue to suffer casualties, anyway, Li Shimin and Jingwen would not be heartbroken.

Next, the 10,000 Xi and Tatar allied forces immediately began to attack, obviously wanting to fill the city with human lives!

But Yuangai Suwen on the city wall snorted: "Want to test people's lives to fill in? Sue you, your lives are worthless, see how I kill you! ”

"Pierce the heart with ten thousand arrows!" Yuangai Suwen shouted.

Soon, hundreds of people also began to operate in a mechanism behind the city wall, after which these Xi and Tatar soldiers continued to attack, and did not see any changes behind the city wall.

And those Goguryeo soldiers who operated the so-called ten thousand arrows piercing the heart also took out hundreds of arrows at a time and put them in a trench, and then flattened them. After that, they began to shoot at the Xi and Tatar soldiers outside the city.

"Whoosh Whoosh ......"

Hundreds of arrows were fired at the same time, and then the soldiers of the Xi and Tatar tribes suffered very heavy losses, losing hundreds of people at one time.

And the leader of the Xi clan looked at this situation, and his heart was dripping blood, obviously these losses made them extremely painful.

"Emperor of the Tang Dynasty, hurry up and withdraw your troops!" The leader of the Xi tribe pleaded bitterly.

"Retreat!" Li Shimin finally got gracious.

Soon, the soldiers of the Xi and Tatar tribes also retreated. (To be continued......)