Yatung

— The Tibetans had encroached upon our territory in Sikkim, they had established a customs post at Giao-gong, fifteen miles inside the frontier, and had forbidden British subjects to pass their outposts there; they had thrown down the boundary pillars which had been set up along the undisputed water-shed between the Tista and the Ammo chu. They had insulted the treaty rights of the British by building a wall across the only road from Tibet to the market of Yatung, which had been thrown open to trade with India by the stipulations of the Convention of 1890-3; more than this, they returned unopened letters sent by the Viceroy to the Grand Lama in Lhasa.