The Sino-Indian border dispute is an ongoing territorial dispute over the sovereignty of two relatively large, and several smaller, separated pieces of territory between China and India. The first of which, Aksai Chin, is claimed by China as part of the Xinjiang Uygur Autonomous Region and Tibet Autonomous Region and claimed by India as part of the union territory of Ladakh; it is a virtually uninhabited high-altitude wasteland in the larger regions of Kashmir and Tibet and is crossed by the Xinjiang-Tibet Highway. The other disputed territory is south of the McMahon Line, formerly known as the North East Frontier Agency and now called Arunachal Pradesh. The McMahon Line was part of the 1914 Simla Convention signed between British India and Tibet, without China's agreement. As of 2020, India continues to maintain that the McMahon Line is the legal border in the east. China has never accepted that border, stating that Tibet was never independent when it signed the Simla Convention.