Inner Mongolia / Nei Mongol
Inner Mongolia is an autonomous region of the People's Republic of China, located in the north of the country and bordering Mongolia and Russia.
It was established in 1947 out of provinces: Suiyan, Chahar, Rehe, Liaopeh and Hsingan.
It has an area of 1.200.000 sq km and a population of about 24 million.
The official languages are Chinese and Mongolian, the latter written in the traditional Mongolian script, as opposed to the Mongolian Cyrillic
alphabet used in the Mongolian state.
Inner Mongolia has a rich and long history, including Genghiz Khan and short period of independence in the late 1930s and early 1940s.
Now, there is a movement led by the Inner Mongolian People's Party demanding self-rule for the Inner Mongolians.
Given the fact that 80% of the region's population is Han Chinese the prospects for the real autonomy are rather bleak, and independence even less probable.Note that this flag has another version which you can find in this [link] and this [link]