evidence: Tshering also touched upon the dispute over the Dong Lang area (Doklam), where Chinese and Indian troops faced off in 2017. He said of Doklam that "It is not up to Bhutan alone to solve the problem. [...] In response, Zhang pointed out that Doklam is totally located within China's territory and has nothing to do with India. This fact has been clearly stipulated by the Convention between Great Britain and China Relating to Sikkim and Tibet signed by China and the UK in the late Qing dynasty (1644-1911) that has been legally enforced. India has no right to speak a word or claim sovereignty of the area, Zhang noted.