> Arunachal Pradesh, a region east of Bhutan that is controlled by India but claimed by China. For context on this one: a large part Arunachal Pradesh was part

> Arunachal Pradesh, a region east of Bhutan that is controlled by India but claimed by China. For context on this one: a large part Arunachal Pradesh was part of Tibet, and as such of the Chinese Empire. After the 1911 Revolution Tibet split from China and in 1914 Tibet ceded that territory to the British. Obviously that was never accepted by China (be it the ROC or PRC). Interestingly, in 1962 China (re-)conquered it from India but then withdrew, which does not exactly strengthen their claim.