The Thunderbolt warships that came upstream first dumbed the artillery of the Shiyu Reclamation Point, and then used their artillery to disperse the Mongolian troops on both sides of the river. The commander of the Mongol army on the east bank of the river had to order the whole army to retreat in order to avoid the artillery fire of the Perak warships. Although the Mongolian army has no intention of retreating now, anyone with a discerning eye knows that with the arrival of warships supported by the Perak army and navy, it is no longer possible to cross the river from this section, or it is impossible to cross the river from the Jinma River again. At this time, the Mongolian army was like a poisonous snake that wanted to suddenly attack its prey, but when it was halfway through, it was cut in half by the Thunderbolt army, and the more than 600 Mongolian troops who crossed the river are now alone.

The 500 new annexed troops in Jiangyuan City did not know the battle situation at the Shiyu Tun reclamation point at this time, and they also bombarded the Thunderbolt army's warships with the artillery on the wall. However, the movement of the warship was uncertain, and the gunners of the new annexed army did not know how to measure the range, the gauge, and the wind deviation, let alone make precise ballistic calculations, so the accuracy of the shooting was very poor, and they did not hit or damage a single ship. However, the Thunderbolt warships did not dare to shoot at the new annex army, so they had to quickly go downstream. On the one hand, the fortress artillery at the head of the city is powerful, and the warships will definitely sink if they are hit, and on the other hand, as the source of the river as the county seat, the defense facilities are far stronger than the reclamation points, and the gun positions at the head of the city have reinforced concrete roofs, which can only be destroyed by solid shells of heavy artillery ships. At this moment, all the light gunboats and escort ships were heading to the Shiyu Reclamation Point, and the heavy gunboats were still on their way at this time.

Compared with the high morale of the new annexed army in Jiangyuan City, the new attached army in Shiyutun reclamation point had a gloomy face and a panic in their hearts. Originally, there were only about 100 of them, but more than 10 people were injured under the artillery bombardment of the Perak Army. Compared with the new annexed army trembling under artillery fire, Chang Yuan and his henchmen, who were also cowering in Shiyutun, were like falling into an ice cellar. They were originally full of expectations that after dominating Jiangyuan, they would be promoted to become wealthy and expand their family business, but they expected that the Mongolian army would be beaten back before the river was finished. Now not only can't you be an official and make a fortune, but I'm afraid it's impossible to keep your head. They know that the Thunderbolts are never soft on traitors.

There were also more than 50 Mongolian cavalry at the Shiyu Tun reclamation point, who were part of a team of 100 men who crossed the river first, and the other half of the people were carrying a transport boat that was sunk by Xia Dagen's escort boat while crossing the river. In fact, the original target of the escort ships was not the cavalry, but the ships loaded with horses. However, when these cavalrymen saw the escort ship rushing towards it, they desperately shot arrows to block it, and succeeded in attracting the attention of the escort ship. The shiny collision angle of the escort ship passed, and the ships collapsed, and the Mongolian cavalry on board, who was not familiar with water, fell into the water and became food for the king of the river.

At this moment, these Mongol cavalry, who had already crossed the river, were preparing to leave the Shiyu Reclamation Point. They understood that this reclamation point by the river was a dead land, and that they would not be able to hold it after the Thunderbolt reinforcements came, and it would be a matter of time if they did not leave at this time. And they also have an important task on their shoulders - to interfere with the summer harvest of the Perak army, and burn the yellow-ripened crops and granaries along the way.

Chang Yuan saw that the Mongolian cavalry was leaving, so he ran to the door with his henchmen and begged to take them with him. Because some of the boats carrying horses were sunk and some did not cross the river, these cavalry were not one man and two horses, but one man and one horse, and more than a dozen horses carried many clay pots. Because the new military captain who had been in contact with Chang Yuan was killed by artillery after going ashore, and Chang Yuan and his henchmen did not understand Mongolian, the Mongolian centurion who was blocked did not say a word, and he was beaten with a horse whip on his head and face, and Chang Yuan rolled all over the ground. Rao was like this, Chang Yuan still held the horse's leg like a life-saving straw, which made the Mongolian centurion even more annoyed, and he pulled out his scimitar and was about to cut it down. Seeing this, the henchmen next to him hurriedly pulled Chang Yuan aside, and at this moment he was still crying loudly: "I am Jiangyuan Zhixian, I am Jiangyuan Zhixian sealed by Lord Liu Heima."

The magistrate that Chang Yuan had in mind was still nothing more than cannon fodder in the eyes of the Mongols, just a cannon fodder manager. Liu Heima actually knew that with the advantage of the Thunderbolt Army and the Navy, even if he captured Jiangyuan, he would not be able to hold out for too long. The reason why he still sent troops was because his plan did not take too long, even three to five days. Liu Heima's plan was to defend Jiangyuan City with 2,500 new attached troops, 500 new attached troops to defend the Shiyutun reclamation point, and five hundred-man cavalry teams to act separately, relying on the mobility of one man and three horses to set fire to the territory of the Perak army. During this time, the sun was shining, and there were harvested grains and unharvested wheat fields everywhere, and there were many straws in the fields and around the fortress, which would become a fire and burn the prairie after being ignited with fire oil, and the scene was very beautiful when you thought about it. It's just that Liu Heima's plan came to an abrupt halt due to Xia Dagen's vigilance, and the number of people crossing the river was less than one-fifth of the planned number, especially the arson cavalry was only one-tenth of the plan, and the lack of horses also made his mobility drop sharply.

After the Mongol cavalry left the Shiyu Reclamation Point, they rode their horses to the northwest. They knew that the closer they got to the mountain, the shallower the river became, and in some places they could even wade across the river, and that the river was wide and deep to the east and south, and there was a lot of mud and mud, which was not conducive to the movement of horses. The Mongol cavalry set fire to the horses, but they only burned a lot of haystacks and wheat fields, but they did not shoot many people. The Mongol centurion sent a few men to test the wheat fields along the way, but before they could get close they were fired by muskets, and from time to time they threw grenades at the ditches, ridges, and haystacks, and spears stabbed at the closer. Although these people were no match for the cavalry, it was extremely time-consuming to hunt them down. The Mongol centurion estimated that if he rode his horse to break it, but he would also lose a lot of people, he ordered his men to throw the lit oil canister and ride away.

An hour after the Mongol cavalry departed, the cavalry of the cavalry battalions of the two Perak Field Brigade arrived at Jiangyuan City and Shiyutun Reclamation Point, the former was two companies and the latter was one company. There were five companies in the cavalry battalion of the field brigade, and two more companies were sent to pursue the arsonist Mongol cavalry. It was midday, and the two cavalry did not attack, but took refuge in the woods from the scorching sun. Cavalry attacks were neither good nor wasteful, they were waiting for the arrival of infantry and naval armies.

The arrival of the Thunderbolt cavalry completely cut off the idea of escaping from the newly annexed troops of Jiangyuan City and Shiyutun Reclamation Point. In fact, as long as the cavalry is willing to fight head-on, the infantry has some ways to restrain the cavalry, but the key problem is that the cavalry should not fight. The cavalry is good at attacking, and the infantry put on armor, heavy shields, and spears and waited, but the cavalry came and slipped around and ran away. When the infantry was tired, thirsty and hungry, and were just about to unarmor and eat and rest, the cavalry rushed again, and a few repeated attempts could bring down the infantry.

The new annex naturally understood this truth, and they had to retreat to the defense, waiting in anxiety. The optimists are hoping that the Mongols will send reinforcements to save them, while the pessimists are praying in their hearts that the last moments will not be too miserable, and Chang Yuan is the former. It's just that "the process of waiting is a kind of suffering, and the result of waiting is often loss", early the next morning, more than a dozen Thunderbolt warships appeared on the water next to the Stonefish Reclamation Point, and the three in the middle were the heavy artillery ships known as the fortress blasters.