What happened to the Hu people who invaded China in history (during the Sixteen Countries Period of the Eastern Jin Dynasty) today? Is the specific ethnic distribution area extinct?

At that time, it was called "five disorderly flowers"

Refers to the Huns, Xianbei, Jie, Qiang and Bian.

The Huns were not extinct, and some of them went west into Europe. Some of them moved south and merged with the Han nationality.

Most of the descendants of Xianbei people in ancient times merged into the Han nationality, a few merged into the Khitan nationality, and a few evolved into Xibe nationality.

Jie, a nation, has died out. After Chen Baxian, the general of Nanliang, and the troops of Guangdong and Guangxi in the Pearl River valley made full preparations, they went north to the south of the Yangtze River and paid a huge price to mourn this belligerent and stubborn nation, which was less than 10,000 people and really disappeared from the earth.

Qiang people are now Qiang people, and most of them live in what is now Sichuan Province.

After the Tang Dynasty, the activities of the Di nationality were greatly reduced. Some people think that some descendants of the Di nationality have continued to this day at the junction of Sichuan and Gansu, and some have merged with the Han nationality.