After entering October, the top brass of the Perak Army was very busy, because in addition to the heavy military, political and economic construction, there were also heavy tasks of clearing land and sowing seeds.

Because agriculture depends on the weather for food, in order to ensure the grain supply for the coming year, it is necessary to grow as much grain as possible and plant all the three million acres of land.

During this period, the Mongolian army did not make major moves, but constantly sent small groups of cavalry to harass, but did not dare to penetrate deep into the hinterland.

The most in-depth time for the Mongol cavalry was to the Datang Reclamation Point in Pujiang City, where the Mongolian cavalry squad secretly crossed the river with a leather bag, and wandered to the vicinity of the Datang Reclamation Point because there was no gap in the county seat.

Unable to penetrate the stockade surrounded by high walls and moats, the cavalry squad wandered a short distance outside the wall, trying to shoot villagers who had gone out to work.

After being killed and wounded by grenades, the remaining cavalry fled in panic, but unexpectedly broke their horses in the mud ponds and ditches along the way.

To say that these Mongol cavalry arrows were very ferocious, the militia who followed them not only could not get close, but were shot and wounded a few people, and finally they were destroyed with artillery by the field brigade musketeers, the official name of the mounted infantry.

Practice has proved that cavalry and artillery are the nemesis of the Mongolian cavalry, as long as the Thunderbolt army has horses, it will make the Mongolian cavalry retreat.

The internal construction of the Thunderbolt Army went smoothly, but troubles followed. First of all, Cao Zhizhou of Yazhou sent people to ask for Baizhang City three times and five times.

This shameless approach made Ouyang Xuan amused and angry, not to mention that it was taken from the hands of the Mongolian army, and Cao Zhizhou did not mention this city when he asked for the famous mountain city.

In Cao Zhizhou's opinion at that time, Baizhang was small and poor compared to the famous mountain, and the city had been burned down by the Mongolian army, so it was worthless in the short term.

To restore Baizhang City, it will not only require a lot of financial resources but also a long time, and Cao Zhizhou really has no interest in doing such a thing.

Baizhang's magistrate and other officials have also died, and no one has come forward to ask the Thunderbolt army for it, so Cao Zhizhou no longer asks.

But after just one month, Baizhang City was actually repaired by the Thunderbolt Army, and the population and economy began to recover slowly, and there were more business trips in the past.

Seeing that Baizhang was about to prosper again, Cao Zhizhou moved his mind, and he complained to Yu Xing on the one hand, saying that the Thunderbolt army was bullying and seized Baizhang City, which originally belonged to Yazhou.

On the one hand, he kept sending people to meet Ouyang Xuan, threatening that if he did not hand over the Thunderbolt Army, he would report to the imperial court, and frequently hinted that he was very hard in the middle and back of the Lin'an Dynasty, and Ouyang Xuan would not be able to eat and walk around.

It's just that he is self-aware, and he knows that with the steepness and solidity of Baizhang, even the soldiers of Yazhou will not be able to capture Baizhang City.

Therefore, he sent someone to send a large amount of property to Yu Xing - Yu Xing's father and son were known to be greedy for money, so he subdued Ouyang Xuan.

It is said that Yu Xing, as a fish swimming in the sea, where will he be at the mercy of his subordinates because of money. But he smelled a business opportunity from this incident and wanted to squeeze more money.

He first told Cao Zhizhou that this matter was extremely difficult, and the Thunderbolt Army had never been promoted, implying that Cao Zhizhou's property was not enough.

Although Cao Zhizhou didn't know where Ouyang Xuan came from, he also knew that the Thunderbolt Army would not give in easily, and he could only pinch his nose and admit Yu Xing's bribe.

On the side of the Perak army, Yu Xing first told Ouyang Xuan that although Baizhang City was taken back from the Mongolian army, it should be returned to Yazhou according to the regulations of the imperial court.

This matter has been circumvented many times, but Cao Zhizhou does not forgive, if Lin'an investigates it, the Thunderbolt army will be severely punished, and it will be difficult for him to shelter himself.

Ouyang Xuan knew that this old fritter in the officialdom just wanted to cheat some money, so he sent someone to send money over.

After all, this Yu Xing is the nominal top boss, and it is no good if the relationship is stiff. This Baizhang City is the western gate of the Perak Military District, and it will definitely not be handed over, if you can spend some money to solve the problem, it will be cost-effective.

This Yu Xing grasped the psychology of both sides and used the identity of the judge

"Eat the plaintiff and eat the defendant", do not take sides - only favor the party that sends more money. In fact, he wished for a long-lasting dispute over the ownership of Baizhang City, so that he could reap more benefits until the two sides could not squeeze out the oil and water.

"If you don't get rich as an official, you won't invite me to come", this is not only the motto of Yu Xing's father and son, but also the motto of most Southern Song Dynasty officials.

In fact, Yu Xing's corrupt money was not all obtained by himself, but a large part of it was used to deal with high-ranking officials in the court, including the Privy Council and the prime minister, as well as the queen mother, queen and concubines in the harem.

Ouyang Xuan saw that Yu Xing's attitude was ambiguous, and he was even more unimpressed by the threat of Cao Zhizhou in Yazhou. Now that Baizhang City is in the hands of the Thunderbolt Army, is it possible that Yazhou dares to send troops to attack?

Later, Yu Xing asked for money and property, but he ignored it, this person was too greedy, like a bone appendage, and he wouldn't let go of his mouth.

After the battle of Hengyuan Fort, Yu Xing repeatedly sent people to ask for artillery, ammunition and even production equipment and technicians, but Ouyang Xuan found a reason to refuse, and now the Thunderbolt army is not enough, where will it be given?

After the Battle of Qiongzhou, Yu Xing used the matter of Baizhang City to beat Ouyang Xuan, but after receiving the money, he did not press forward step by step.

It's just that he also knows that the Thunderbolt Army is listening to the tune and not listening to the announcement, and it will not be beneficial to both sides to really annoy Ouyang Xuan, so he has always been more restrained and does not dare to force the Thunderbolt Army into a hurry.

However, after October, he became more and more assertive in his demand for firearms, technology, and supplies. Because Yu Xing was promoted again——— he was appointed by the imperial court as the envoy of Sichuan and the deputy envoy of Chengdu pacification and the governor of Jiadingfu, which means that he became the second in command of the Southern Song Dynasty in Sichuan.

The Sichuan system made Pu Zezhi no longer trusted by Lin'an because of the Battle of Chengdu, and in order to support the war situation, he promoted a group of powerful generals, Yu Xing was one of them.

In order to be promoted this time, Yu Xing not only used the brilliant achievements of the Thunderbolt Army, but also spent a lot of money, and he spent 5,000 taels of silver on the famous traitor Ding Daquan alone.

According to the unspoken rules of officialdom in the Southern Song Dynasty, even if you have a brilliant military record, if you want to be promoted, you still have to work around.

Of course, Ouyang Xuan's agreement to transfer firearms was not based on Yu Xing's pressure, but on the basis of his judgment of the current situation.

On the other hand, Niu Xuan led the army to defeat the Song army in the Battle of Mahu River and captured Zhang Shi, the commander of the capital stationed in Xuzhou.

This Mahu River is the Jinsha River, and the river surface is also very wide, and Zhang Shi is also a fierce general under Yu Jue. It was not uncommon for the Song army to be defeated by the Mongol army on land, but the defeat of the Mongol army in this water battle was certainly due to the weakening of the Song army's water power in Sichuan due to the long-term war attrition, but it also reflected the growth of the strength of the Mongol army's naval army.

On the other hand, Ouyang Xuan had learned that Liu Heima was using Jin Guo's technology to imitate artillery. The Jin State, which occupied the Central Plains, had a large number of Han Chinese under its rule, and its siege techniques were also very advanced, including firearms.

After the Mongols destroyed the Jin, they looked down on these techniques for a while, but after suffering losses in the confrontation with the Song army, they also used the firearms technology of the Jin State.

Of course, there was a big gap between these firearms of the Mongolian army and the firearms of the Song army in the Lianghuai area and those of the Perak army, and the effect was very poor in actual combat, so they did not attach importance to firearms.

However, after the Battle of Yokohara Fort, the Mongol army began to pay attention to this new weapon that could change the tide of the war. With a large population base and skilled craftsmen under the rule of Han China, it was not difficult for the Mongols to make iron cannons and even more expensive copper cannons.

Once the firearms are installed on a large scale, they will surely strengthen their strong cavalry. Take Niu Ling as an example, although he only has 20,000 men under his command, his combat strength has formed a suppressive trend against the Song army in Sichuan, and Pu Zezhi has been defeated and retreated.

The city of Jiading Mansion is backed by mountains and water, and there are fortresses and fortresses such as Sangui Jiuding City, but they will also be in danger under artillery attack.

And once Jiading Mansion falls into the hands of the Mongolian army, the Thunderbolt army will inevitably be the focus of the attack. Therefore, Ouyang Xuan thought about it for a long time, and decided to assist firearms technology to enhance the strength of Yu Xingbu.

Of course, the Thunderbolts only provided firearms technology for the equipment of the forts and second-line troops.