In the Republic of China 1 1 year (1922), the new viceroy set a vicious plan to curb the local forces of Lei and Yang. On the one hand, Lei Yunfei was appointed as "commander of Sichuan guerrilla defense", on the other hand, Yang Runtian, a native of Yueliangping in Yanbian County and the leader of local militia, was appointed as "commander of Liangyan Township" and ordered * * * to jointly defend the Yunnan army. Delimit each other's spheres of influence, with Lengshui Qingshan Ridge as the boundary. Tongde, Civil Affairs, Yinjiang, Wuben and Ni Hong in the south of Lengshuiqing are Lei Yunfei's territory, while Healthy, Yongxing, Huimin, Xinping and * * * in the north of Lengshuiqing are Yang Runtian's territory. Lei Yunfei set up a headquarters in Jingzhuang Temple in Mianhuadi (Tongde), but Yang Runtian's militia didn't set up a headquarters, so it was temporarily transferred.

Between Lei and Yang, in order to collect cigarette money and compete for territory, armed conflicts often occur, and the contradictions gradually escalate. 12 (1923) At the beginning of the year, Lei Yunfei wanted to enter Yanbian County, but was rejected by county official Yu Binglong. Lei Yunfei became angry from embarrassment and led several attacks on the county seat. County magistrate Yu Binglong supported Yang Runtian's resistance, and Yang led the militia to repel Lei's attack, which further aroused Lei's hatred for Yang.

In April of the Republic of China 13 (1924), Lei and Yang fought again in Mengliangping, between Tongde and Wula, and were deadlocked for more than a month, with heavy casualties on both sides. In September of that year, Yang Runtian went to Xichang to report the situation, and his brother Yang Erlei presided over military affairs at home. On June+10, 5438, You Yanchao, the local armed leader of Anpai Miyisalian, and Jiang Weilei and Yang, the local armed leaders, mediated. At the beginning of winter, You and Jiang took several armed men to the salt border to mediate, and they were bought when they passed by the cotton field. You and Jiang entered Yanbian County with their entourage, and lived in the Yang family in the name of mediation. While Yang was unprepared, they launched a surprise attack from the outside at night, killing Yang Erlei on the spot and taking Yang's father alive. Take advantage of the situation to lead troops into the city, rob the Yang family's property, tear down the Yang family's house and use Yang's father as a living sacrifice. Fearing trouble, Governor Yu fled to Yongxing overnight and returned to Xichang via Yanyuan to report his safety. Lei Yunfei laid an ambush everywhere. When Yang Runtian heard the news, he rushed back from Xichang and was assassinated by thunder when he went to Baiyunjing in Yanyuan. Yang's power ends here. Lei Yunfei's influence has greatly increased, and the whole Yanbian and surrounding areas have basically become Lei Yunfei's sphere of influence. Lei Yunfei became a bully.