There are two Ahemakhans, one is the 42nd monarch of the Golden Account Khan, far away in Russia, not bordering the Ming Dynasty, and the other is the seventh generation Khan of Yerqiang Khan and Sultan Ahemakhan. The actual control area of the Ming Dynasty was in the eastern part of Qinghai, and the western part of Qinghai was out of control, while Yerqiang Khan was far from Kashgar and did not border with the Ming Dynasty, so neither of them would ask the Ming Dynasty to reopen trade, and there was no trade relationship at all. It was Mongolian Anshan Khan who asked the Ming Dynasty to reopen trade. Emperor Jiajing of the Ming Dynasty closed the border trade, and Mongolian tribal materials became increasingly scarce. Even if he has money, sheep and horses, he can't buy necessities such as salt and tea. An Sanhan asked Jiajing Emperor to reopen trade, but Jiajing Emperor refused. In the twenty-first year of Jiajing, An Shan Khan sent envoys to negotiate. As a result, the envoy was beheaded by Governor Datong, and An Sanhan personally led hundreds of Mongolian cavalry in the 29th year of Jiajing. Qiu Luan, the company commander of Datong, collected a large amount of gold and silver treasures, sent someone to answer Shan Yu, and promised him a series of conditions. He only wanted to answer Khan not to attack Datong, and said that the garrison in Fu Xuan was weak, so he could go there. Ansan Khan's attack on Fu Xuan (Xuanhua, Hebei) was sweeping all the way, and Ansan Khan's Mongolian cavalry went directly to Beijing at the gates. Khan swept through Beijing for eight days and grabbed a lot of food. Countless Ming people were also taken into slavery in Mongolian tribes. Finally, An Dan Khan grabbed enough and decided to quit the Ming Dynasty and return to the grassland. The following year, An Dan Khan decided to open the border trade to the Ming Dynasty again. This time, the Ming dynasty finally agreed to open a mutual market on the border, allowing Mongolian tribes to exchange gold, silver, jewelry, horses, cattle and sheep for products from the Central Plains. Later, I didn't know what Emperor Jiajing and Cabinet Yan Song of the Ming Dynasty smoked, saying that cattle and sheep could not be traded. Since you can't change it, grab it until you agree. From then on, I no longer applied for border trade, but simply organized troops to rob the Ming Dynasty border several times a year. For sustainable development, we only rob and don't kill.