“It is reported that the incidents happened at Donglong, (that it) is part of the disputed territory between China and Bhutan. According to Lu, Indian troops crossed the boundary on the Sikkim side into Chinese territory. Former National Security Advisor Shivshankar Menon had travelled to Thimphu in 2013, amidst rumours that Bhutan was considering such an arrangement. Then, in 1966, Tibetan nomads entered the pastures of the Doklam plateau, escorted by People’s Liberation Army guards, provoking fears of an attempt to occupy the territory. In 1988, things came to a head when the PLA crossed into Bhutan and took control of the Chumbi Valley, below the Doklam plateau.

Source: Indian Express June 29, 2017 00:49 UTC