The Sino-Indian border dispute is about several territories that are claimed by both the People's Republic of China and the Republic of India. The farthest west, Aksai Chin, is part of another dispute involving Pakistan. It is controlled by China but is claimed by the Government of India. They consider it part of the region of Xinjiang. It is a place where very few people live. The other large disputed territory is to the east. It is south of the McMahon Line. It used to be called the North East Frontier Agency. It is now called South Tibet. The McMahon Line was part of the 1914 Simla Convention between British India and Tibet. China rejected the agreement.