Sovereignty over two relatively large and several smaller separated pieces of territory has been contested between China and India. Aksai Chin is located either in the Indian union territory of Ladakh or the Chinese autonomous region of Xinjiang. It is a virtually uninhabited high-altitude wasteland crossed by the Xinjiang-Tibet Highway. The other disputed territory lies south of the McMahon Line. It was formerly referred to as the North East Frontier Agency, and is now called Arunachal Pradesh. 

The McMahon Line was part of the 1914 Simla Convention between British India and Tibet, without the agreement of China.[1] weki #Indianborderdispute #Indianborder   The 1962 #SinoIndian War was fought in both of these areas. An agreement to resolve the dispute was concluded in 1996, including "confidence-building measures" and a mutually agreed Line of Actual Control. In 2006, the Chinese ambassador to India claimed that all of Arunachal Pradesh is Chinese territory[2] amidst a military buildup.[3] At the time, both countries claimed incursions as much as a kilometre at the northern tip of Sikkim.[4] In 2009, India announced it would deploy additional military forces along the border.[5] In 2014, India proposed China should acknowledge a "One India" policy to resolve the border dispute.[6][7]