History of Garze

Garzê was traditionally part of the historical region of Kham.

During the period of rule by the Republic of China (1912–49), Garzê became nominally part of the province of Xikang, which included parts of former Kham.

In 1930, the Tibetan army invaded Garzê, capturing it without much resistance. However, in 1932, the Tibetan army withdrew after suffering defeats elsewhere at the hands of the warlord of Qinghai, Ma Bufang. Chinese warlord Liu Wenhui reoccupied Garzê, and signed an agreement with the Tibetans formalizing his control of the area east of the upper Yangtze, which corresponds roughly with eastern Kham.

In 1950, following the defeat of the Kuomintang forces by the People’s Liberation Army, the area fell within the control of the People’s Republic of China. Eastern Xikang was merged with Sichuan in 1955, where Garzê became an autonomous prefecture.

Source From: https://en.wikipedia.org/wiki/Garz%C3%AA_Tibetan_Autonomous_Prefecture#History