First East Turkestan Republic
The Turkic Islamic Republic of East Turkestan (TIRET) was a breakaway state centered on the city of Kashgar, located in the far west of China's Xinjiang Province. It is often described as the First East Turkestan Republic to differentiate it from the Second East Turkestan Republic (1944–1946) established exactly a decade later.
Source: Wikipedia — First East Turkestan Republic (CC BY-SA 4.0)