After Genghis Khan unified the Mongol tribes, he conquered the east and the west to destroy countless countries. Countless steppe tribes were subordinated to the Mongol sabers, but one of the tribes that Genghis Khan hated the most was probably the sworn enemy of the Beggars. The Jurchens, a nomadic tribe living southeast of Lake Baikal, are said to be descendants of the Rouran people who were wiped out by the Turks, and there is also a theory that the Jurchens are now Chukchi or other Tunguska people.
It is said that the Beggars, who use large bows and long arrows, are an extremely barbaric and belligerent tribe, and even eat human flesh raw. The people of the steppe avoided it. Temujin's father should have also snatched the bride of the brother of the chieftain of the beggar, and the old family formed a hatred. Later, when Temujin was 18 years old, he married his wife Bo Erti, and the Contemptuous Beggars launched a surprise attack to rob Temujin's new wife, Bo Erti. Nine months later, Temujin relied on the help of his righteous father Wang Khan and his brother Zamuhe to send troops to retake Boerti. However, Bo Erti soon gave birth to a boy, and it is difficult to say who this child is, and Genghis Khan was later troubled by this matter. Of course, Genghis Khan did not treat this eldest son differently, but it may be that Genghis Khan always had mustard in his heart. Later, Genghis Khan vowed to kill the beggars, and wherever the beggars ran, the Mongol iron horse would chase them. The Jurchens initially fled to the Naimans in the Altai Mountains, and Genghis Khan soon sent an army to destroy the Naimans and unify the whole of Mongolia. Later Genghis Khan's army killed the leader of the Beggars, Tuohei, in the area of Lake Balkhash, and the remaining Beggars fled to the Chincha tribe in the Caspian Sea. During the Western Expedition, Genghis Khan sent the generals Tetsubetsu and Subutai to destroy the Chincha tribe and kill a large number of Chincha people. Like a lost dog, the beggars fled to the Bulgarian region of Europe, where they mingled with the Bulgars. It can be said that the beggars became an excuse for the Mongol conquest of the west. This also reflects Genghis Khan's character of revenge.
The beggars offended Genghis Khan and eventually disappeared, and it is possible that some of the Bulgarians now have the blood of the beggars. This is also a trace of history, it is worth mentioning that although Genghis Khan once vowed to eliminate the entire Qi'er Beggars, there are still some Qi'er Beggars who may have integrated into the Mongols, such as the famous Xiang Boyan and Detuo at the end of the Yuan Dynasty.