Quiet days are always short-lived, and on the sixteenth day of the first lunar month, news came that the Mongol Tumut tribe living in the Hetao area sent troops to harass the Yansui area, and Zhang Heming, the governor of Shaanxi and Gansu, sent people to quell the rebellion.

It turns out that in history, due to the oppression of other tribes by the leader of the Chahar tribe, Lin Dan Khan, and the continuous attack of the Jurchens, some Mongolian tribes moved westward, gathered in the Hetao area, and constantly harassed the Shaanxi and Gansu regions, and because of the support for the Liaodong war, the Shaanxi and Gansu forces were empty, resulting in the Hetao area being invaded by the Tumut tribe.

But what's going on this time, it turns out that the matter is still with Lin Dan Khan, this guy got the opportunity to trade with the Ming Dynasty, wantonly bought all kinds of commodities and grain in the Ming Dynasty, and wantonly raised prices to sell to other tribes, and all disobedient tribes were forbidden to trade. Because of the support of the Ming Dynasty, the current Lin Dan Khan is much stronger than in history, so some tribes still moved west to the Hetao region as they did in history. These tribes are poor jingling, even eating is a problem, although there is beef and mutton, but there is no tea to eat, so they cooperated with the Altan Khan tribe to rob the Ming Dynasty people in the Yansui area.

Zhu Youxiao couldn't help but smile bitterly, it seems that the decline of the Mongols is inevitable, and they will start killing each other as soon as their days are over, and the Ming Dynasty will have to worry about it. Since then, Zhu Youxiao decided to divide the Mongols, no longer thinking of letting these soldiers go on an expedition to the Western Regions, but decided to assimilate them and make them a part of his Han nationality, a branch of the Chinese nation, an inseparable part like later generations. Historically, the Tanguts, Liao, and most of the Jurchens of the Jin Kingdom have become part of the Han people, and their writing and language have been basically assimilated by now, and their own cultural characteristics have been lost. Just like the Mongols nowadays, whether it is the Chahar tribe or the Tumut tribe, they have lost the brave spirit of Genghis Khan's time, although they look like wolves, but they have lost the cooperative and ferocious nature of wolves, just like wolves kept in zoos, only have their shapes. Since this is the case, Zhu Youxiao made up his mind to put down this rebellion with all his might, strive to fight and pull in, completely subjugate the Tumut tribe, and then carry out strict military training and cultural assimilation, so that they can completely become bloody Han warriors.

Zhu Youxiao was determined to quell the Hetao Rebellion, so he had to send suitable commanders and generals. Xiong Tingbi is in Liaodong, and Sun Chengzong is still in Sichuan and has not returned, so who will be the commander and general? At this time, a person came - Yuan Chonghuan, Yuan Chonghuan went to Beijing to report on his work this time, so Zhou Jiamo, the secretary of the ministry, recommended Yuan Chonghuan to serve as the imperial history of the Hetao rebellion.

Zhu Youxiao's cognition of Yuan Chonghuan is limited to the evaluation of historical materials, because Yuan Chonghuan killed Mao Wenlong, so Zhu Youxiao is not very interested in him, for fear that he will be stubborn again, maybe he will kill other generals with confidence, but he still appreciates his military talent, after all, Yuan Chonghuan is still one of the three famous generals in the late Ming Dynasty. After thinking about it, Zhu Youxiao still decided to appoint Yuan Chonghuan, but the premise is to send a prison army that restricts him from killing innocent people, who is this candidate, the eunuch is definitely not good, Zhu Youxiao remembered Yuan Yingtai, Yuan Yingtai is upright, and good at local construction, especially good at controlling floods, good at farmland and water conservancy construction, why not replace Zhang Heming with Yuan Yingtai as the governor of Shaanxi and Gansu to restrain Yuan Chonghuan, and make full use of the advantages of the two. The military general transferred Hong Chengchou, although this guy surrendered to the Jurchens in history, he still has quite good military talent, otherwise he would not let the queen of Huang Taiji sleep with him, and Sun Yuanhua and Lu Xiangsheng were also sent over. Sun Yuanhua is now in the newly established Daming Ordnance Factory, cooperating with Song Yingxing, Lei Mingtian, and Bi Maokang to try out the production of new cannons, and Lu Xiangsheng is still studying in the military department of the Daming Officials' School.

In the first year of the Apocalypse, in order to train good steel and cast good cannons, Zhu Youxiao tried his best, Song Yingxing spent money to make steel-making crucibles, and the steel frying technology became more and more mature. And Lei Mingtian paid the price of three fingers, developed the manufacture of the primer of the cannonball, as well as the trigger explosion of the cannonball*, so that as long as the cannonball hits no matter how far it goes, as long as it touches the ground or something hard, it will explode, Zhu Youxiao's cannon plan can finally be completely implemented, although it is not comparable to the modern cannon that can hit dozens of kilometers, but now as long as it can hit two kilometers, it is enough to use, as for the artillery that needs to hit more than ten kilometers in the future naval warfare on the battleship, it is not used at all, At the very least, it won't be used for decades at least. Under the training of Xu Guangqi, Song Yingxing and others, under the training of Daming Technical School, and under the guidance of Zhu Youxiao, these things such as forging, forging and other technologies, alloy steel technology will be broken under Zhu Youxiao's endless accumulation of money, and a few years later, Zhu Youxiao will build iron-hulled warships with steam engine power technology, and even steel-armored warships, which will reorganize the world order.

On the second day of February in the second year of the Apocalypse, outside the front gate of Beijing City in the Ming Dynasty, 20,000 officers and soldiers of the Da Ming Shenji Battalion were neatly arranged, and the 20,000 troops were trained by Sun Yuanhua with the military department after Sun Chengzong left, and the specific training method was personally guided by Qi Jin's retired veterans, and the 3,000 artillery was personally trained by Sun Yuanhua, not only equipped with ordinary "two kicks" small cannons, but also mortars, but also equipped with ten cannons that can hit five miles away, and all of them are equipped with cannon mirrors, calculation charts, Enables soldiers to find and attack targets in the shortest possible time. Another 2,000 men carried 4,000 horses and mules loaded with shells and ammunition.

After Lei Mingtian made the cannon bottom*, under the guidance of Zhu Youxiao, Sun Yuanhua, Bi Maokang, and Wang Zheng and Li Zhizao recommended by Xu Guangqi worked together to create the original hand-cranked machine gun, but the difference with the first hand-cranked machine gun in history is the use of a barrel, the bullet is a turntable type, in fact, it is a large model of semi-automatic rifle, each round of ammunition twenty rounds, the cartridge case can be reused. As for the rifle or the use of paper cartridge casings, whether iron or copper cartridge casings, Zhu Youxiao can't afford to use them at all now, and because they are too heavy, the logistics can't supply them.

In addition to Sun Yuanhua's artillery and hand-cranked machine gunners, the remaining 15,000 men were led by Yuan Chonghuan, Hong Chengchou, and Lu Xiangsheng with 5,000 each. In order to prevent Yuan Chonghuan from disposing of the generals privately, Zhu Youxiao also ordered Yuan Yingtai to personally supervise the army and concurrently serve as the chief of the army.

Zhu Youxiao's review of the army was completed, Yuan Chonghuan set out from the capital with 20,000 horses, and went straight to the Yansui area along the route from Beijing to Datong, and Zhu Youxiao sent 5,000 men and horses to follow with a large amount of ammunition in order to prevent a shortage of ammunition.