After settling down the Qian clan, Ouyang Xuan focused his energy on education and scientific research. At present, the Perak Army still has five important matters, namely the construction of Hengyuan Fort, the southward movement of the armed caravan, the cultivation in the mountains, the development of industry and mining, and the reconnaissance of the enemy's situation.

Among them, Yu Zhu was responsible for supervising the construction of Yokohara Fort. At present, the progress of the fort construction is very fast, but the technicians of Lu Wenan's construction company and the soldiers and migrant workers who participated in the fort construction still work overtime day and night, and even carry out the construction at night with torches.

Ouyang Xuan demanded that the construction of Yokohara Fort be completed in May, and the public reason was that it should be in time for the rainy season, but only a few high-ranking members of the Thunderbolt Army knew about the situation inside.

Brother Xuan had privately told them that the battle of Chengdu would be known in May, that Pu Zezhi would be defeated by the Mongols, and that the Hengyuan Fort must be repaired before the Mongol army attacked.

For this reason, Yu Zhu and Lu Wen'an tried to discuss increasing the number of people to build the fort, but in the end they did not implement it, because the construction area of Hengyuan Fort was not large, and too many people could not improve efficiency but would make the construction site more chaotic.

Cultivation in the mountains is coordinated by Rude. The cultivation season in the Cockscomb Mountains is about half a month later than that outside the mountains, and even a month later in the high-altitude deep mountainous areas.

More than 40,000 mu of the 60,000 mu of newly cultivated land in the mountains are located in low-altitude areas, which have been sown some time ago, and this period is suitable for sowing the remaining cultivated land in high-altitude areas.

Although Lu Dezhi is over 50 years old, he has worked tirelessly to do things, and in the view of his traditional scholars, farming is the foundation of the Thunderbolt Army, and the significance of exhorting farmers and mulberry cannot be exaggerated.

The development of the industrial and mining industry was coordinated by Yang Xiucai. At present, the mines in the mountains have been in full production, with a total of nearly 100 iron, coal, lime mines, sulfur and nitrate mines, and even a small copper mine.

However, due to the imbalance of minerals, the minerals produced cannot meet the production needs of industrial companies, and more importantly, some mines are about to be mined, such as iron, nitrate, and copper.

At present, coal and lime ore resources are the most abundant in the mountain, and these two mines account for the majority of all mines.

Although there are few sulfur mines, there is no shortage of sulfur as a by-product when making iron. Although there are nine iron ore caves as the core resource, three of them are about to be depleted, and there are not many nitrate and copper ore in this Jiguan Mountain, which is a mineral that has been in short supply.

Yang Xiucai and Dang Shijian, the manager of the mining company, adopted two methods to this end: in addition to intensifying exploration in Jiguan Mountain, they also went to other places controlled by the Perak Army to prospect for minerals, such as Meihuazhai behind Yongkang Chengshan and Qianjiazhai in Huojing County.

Ouyang Xuan also ordered the scouts to take iron, nitrate, copper and other mines as the focus of spying. Of course, he also asked that minerals that are not safe and secure should not be mined for the time being, so as not to make wedding dresses for others.

The increase in industrial capacity is not on the agenda now, not only because of raw material constraints, but also because there is too little flat land suitable for building factories in the mountains, and transportation is inconvenient.

In the future, the new industrial base of the Perak Army will still be built in places with convenient transportation and easy to defend, such as Xinjin City, Wugen Mountain, and the peninsula where the three rivers flow together in Yongqu Township is also a good choice.

The preparations for the southward march of the armed caravan were handled by Boss Qian, Dong Hu and Zhu Zhuozi. Boss Qian and Zhu Jiaozi mainly prepare funds, goods and logistical supplies, which are simply familiar to the two of them, and the more troublesome thing is the training of the armed caravan.

According to Ouyang Xuan's order, after Cao Ergou returned to Wanjiaping to resume his life, Dong Hu took over the training of the armed caravan.

On the one hand, this is based on the fact that the backbone of the platoon leaders of the armed caravan squad is drawn from the internal guard battalion, which is more adept at reconnaissance and fighting, and on the other hand, the armed caravan is not only engaged in trade and trade, but also undertakes the task of intelligence gathering.

Dong Hu's trouble lies in the fact that the armed caravan has strong individual ability but loose discipline, especially some Qian clansmen have procrastination and disobedience to orders, and the leader is Qian Bao, the son of Qian Laosan, the commander of the first company of the armed caravan.

This Qian Bao is in his twenties, strong but unruly, when Cao Ergou was training an armed caravan, he was afraid that Cao Ergou's prestige was still honest.

But as soon as Cao Ergou left, he began to be arrogant when he saw Dong Hu's honest and responsible mountain people, and he repeatedly contradicted Dong Hu.

Here, Dong Hu was afraid of destroying the cooperation agreement between the two sides, so he was a little timid. Dong Hu had no choice but to report the situation to Ouyang Xuan.

Ouyang Xuan took the letter, sent someone to transfer the letter to Boss Qian and sent a message,

"Military affairs are important in order to prohibit". Ouyang Xuan's letter and words made Boss Qian furious, and he immediately ordered someone to tie up Qian Bao, and beat him with a hundred lashes in front of all the armed caravan personnel, until Qian Bao grabbed the sky and the earth, and repeatedly begged for mercy.

It is said that this Qian Bao ate the whip, and saw Dong Hu's ability in the future training, not only did not have Dong Hu's jealousy but admired the five-body throw, and simply worshipped him as a teacher.

Seeing Qian Bao like this, everyone dared not violate military orders and discipline again. The routine military operation of reconnoitering the enemy's situation was regarded as the fifth important thing because Ouyang Xuan predicted that the next step would be a turning point in Sichuan on the Song-Mongolian battlefield.

Some time ago, the large-scale reconnaissance operation let Ouyang Xuan know that the historical trajectory has not changed much, but he still needs to grasp the pulse of history at all times in order to make timely responses.

It's just that at this stage, there are only more than 30 reconnaissance personnel, and the focus is on the direction of Chengdu City. With the arrival of reinforcements from the Mongolian army and reinforcements from the Lizhou direction, the Mongolian army defending Chengdu has changed its defense and began to use its mobility to carry out small-scale counterattacks and frequently plundered the surrounding areas.

During this period, refugees and sporadic Song army defeated soldiers fled to Hengyuan Town. According to the news of the defeat of these refugees, the current tug-of-war between the Mongolian army and the Song army is in a stalemate in the city of Chengdu.

Both sides consumed a huge amount of men and materials, so they invariably resorted to looting to obtain food and grass.

The difference is that as long as the common people do not resist, the Song army generally only robs and does not kill, while the Mongols adopt the scorched earth policy of Sanguang, and everywhere they go is like locusts crossing the border.

Under the plunder, the people took refuge in all directions, especially the prefectures and counties in the northwest and east of Chengdu that were plundered by the Mongol army, and the victims were particularly serious.

Although the above five things are all very important, because there are people who perform their own duties, Ouyang Xuan did not intervene too much, for fear that he would manage too carefully and add to the chaos, so he simply soaked in the laboratory of the research institute.

After all, in this era, when it comes to modern scientific literacy, he does not dare to call himself the first.

Rao was so, and his experiments were often interrupted. Although subordinates only ask for instructions and reports when they encounter major matters, after all, there are many things under the rule of the Thunderbolt Army, and there are inevitably several batches of visitors to the laboratory every day.

However, it is strange that it was Cao Ergou who visited this day. During this time, Cao Ergou was responsible for the construction of Hengyuan Fort and the guard of the reclamation point in the piedmont plain, although there were not many things, it was also very important, and it should not appear in Wanjiaping.

"Could it be that something is wrong?" This thought startled Ouyang Xuan, and he hurriedly let him in.