After the Ming delegation returned to Tushetu Khan's station, the three Khans of Mobei were to send their sons with three white camels and twenty-four white horses to follow the mission to Beijing.

Chen Qiyu asked the Trans-Khalkha people to lead the way from the east to the capital, bypassing the desert from the east, on the grounds that the road to the east was too far to walk. Naturally, the Mongols had no objection, so the map to the east was also revised by Bai Jiansen.

After arriving in the capital, the three khans each presented a white camel and eight white horses to the Ming Emperor, which was called the tribute of nine whites, and said that they would pay tribute once a year in the future. In the original history, when Mobei Mongolia paid tribute to Houjin, it was only the three Khans who paid tribute to Jiubai together, which shows that the fear of the Mobei Three Khans for the Ming Dynasty was still above the Houjin in history. In any case, Da Ming defeated Lin Dan Khan much faster than Hou Jin.

During the period of the envoy's mission, the infiltration of Chahar has not stopped. Naiman was the second largest of the eight Otoks in Chahar, and their grazing area was close to the Inner Khalkha Ministry, so Sun Chengzong befriended the Umu Sat Gyerji Lama through fried flowers, and then promised him that he would strongly support his mission in the future, asking him to persuade Naiman's minister, Gonchuk Baturuttaiji.

Gunchuk Batu Rutaiji was soon persuaded by the Umu Sat Tsirji Lama, who had high prestige among the Naiman tribe, to submit to the Ming at the right time. In order to improve his status in Sun Chengzong's mind, the Umu Satqi Lama asked Gonchuk Baturu to persuade the Ao Han minister Sonomu Duling and the leader of the Keshiketeng tribe, Sonomu Noyan, to also submit to the Ming Dynasty.

The minister of Ao Han, Sonomu Duling, was persuaded by Gunchuk Baturu, and he and Gunchuk Baturu made a proposal to Lin Dan Khan, hoping that Lin Dan Khan would make peace with the Ming Dynasty. Lin Dan Khan was very tough, even though he knew that he was not Da Ming's opponent in terms of force, but he still rejected the proposal of the two.

And the leader of the Keshiketeng tribe, Sonomu Noyan, also refused the persuasion of Gonchuk Baturu, he was loyal to Lin Dan Khan, Lin Dan Khan's decision was his decision, and he was unwilling to make friends with the Ming Dynasty behind Lin Dan Khan's back.

In March of the tenth year of the Apocalypse, after a year's time, the highway from Xi'an to Ordos has been completed, and the Dagui Highway from Datong to naturalization has also been built to Fengzhen. To the west of Fengzhen is the city of naturalization, and to the north you can directly reach Mobei Mongolia.

The Dagui Highway is to prepare for the construction of a direct railway to Mobei Mongolia, this railway is called the Jingxiao Railway, starting from the capital, arriving in Datong and then going north, and finally leading to the small seaside.

Now Daming's iron production is increasing at a rate of 40% per year, which is equivalent to doubling in more than two years. In addition to the use of clay, the Ordnance Bureau has also developed some methods to increase the amount of oxygen by using blowers, and the iron works of the Ordnance Bureau are no longer responsible for ironmaking, but only buy pig iron from private iron factories and make steel, which naturally increases the output rapidly.

Therefore, there is no shortage of rails to build the Jingxiao Railway, and a large number of laborers and reasonable management make manpower no problem, but the Fengzhen and other places through which the railway passes are too close to the grazing land of Chahar, and the Chahar people can ride out at any time, and then kill people and destroy things and then go away, so in January of the tenth year of the Apocalypse, the Ming Dynasty launched an attack on the tribes west of the Chahar Department.

Mangui's Northwest Military Region had already returned to Shaanxi, and under the deployment of the General Staff, the Northern Military Region organized a special detachment of the Mongolian army of the Ming Guards, and transferred 5,000 Mongolian cavalry from the Mongolian tribes in the Hetao area, with Su Xiang as the leader, to act as the left wing of the operation.

On the right flank was a division of Wang Zuomin, and in the middle was a division of Du Guangting. Zhou Yuji had already been recalled by the emperor to the capital to discuss the expansion of the Northern Military Region, so the battle was under the overall command of Du Guangting.

Du Guangting first sent an envoy to the three Etoks in the west of Chahar and asked them to move 500 miles to the east. This request was categorically rejected by the three Etoks, and it was a joke, and five hundred miles to the east would be equivalent to shrinking the Chahar pasture by more than thirty percent, and no one could agree to it.

After the messenger sent back the news of the Chahar refusal, Du Guangting gave the order to start the attack. Wang Zuomin attacked the Dorots of the Chahar tribe, Du Leting attacked the Sunit tribe, and Suxiang attacked the Abaga tribe. The simultaneous attack of the three ways made it impossible for the Chahar troops to support each other, and Lin Dan Khan led the headquarters to support, and he could only choose the Sunit department in the middle.

Both Du Guangting and Wang Zuomin's divisions had participated in the battle to recover the Hetao, so they knew the Mongol methods very well. And the Ordnance Bureau, under the guidance of His Majesty the Emperor, produced gasoline, which, in addition to the development of the internal combustion engine mentioned by the Emperor, was transported to the Northern Military District to be tested in the battle against Chahar.

After meeting with the Chahar headquarters, Du Guangting's troops ordered the use of petrol bombs to be used. The gasoline was placed in small sealed clay pots, and as the Chahar cavalry prepared to charge a mile away, the soldiers threw the canisters two hundred paces ahead of the formation and quickly ran back.

When the Chahar cavalry rushed to 500 paces, they all lay down on their horses to avoid the incoming shells and bullets, but the Ming army did not fire at all. It was not until the Chahar cavalry rushed to the petrol bomb that the Ming artillery finally opened fire.

When the shells hit the ground, shrapnel shattered the pots, and the gasoline was quickly ignited and scattered over the cavalry and horses. White phosphorus was put in the gasoline, and after flying down to the object, it would attach and burn, and for a time the front of the Ming army had become a sea of fire.

The people and horses who were scurried by the fire tried to escape from the fire, but they fell to the ground inexplicably. Some escaped, but the flames on their bodies stubbornly did not want to be extinguished, and the smell of barbecue came from them. The hideous faces of the Mongols who were burned to death, and the neighing of the horses when they were dying, made the whole scene seem like hell on earth.

Du Guangting's face was pale, and he didn't expect the gasoline bomb to be so powerful. This can't be considered a battle at all, this is the slaughter of Chiguoguo. Li Delin, a staff officer next to him, said: "Because the burning is too violent, people who are not burned will also die because of the lack of air to breathe. ”

Du Guangting sighed and said, "This weapon is too cruel and too killing. It is hoped that Chahar will choose to surrender after this battle, so that we will not increase our sins. ”

Li Delin nodded: "That's true." However, if Lin Dan Khan still chooses to fight, then we can only continue to kill until they dare not fight. ”