evidence: It was observed: "The crossing of the Shipki-la pass by the Chinese Army personnel without visas and passports violates the Sino-Indian Agreement of April 29, 1954, in which the Shipki-la pass has been recognised as the border between India and Tibet region of China at that place." [...] He also mentioned that in the Indian protest to the Chinese Embassy, it should be stated that "in view of the fact that Shipki-la is clearly the border and is acknowledged as such even in our agreement with China, we consider any crossing of armed forces without our permission as aggression and we have to resist it." [...] Regarding Shipki La (pass), it was noted that it part of the Zanskar range, a well-defined watershed frontier, forms the boundary between Tibet and India on which the Shipki la is located: "The Shipki pass had been the traditional and customary boundary between the States of Bashahr (now part of the Himachal Pradesh State of India) and Guge which was incorporated in Tibet in 1720. This fact that Shipki Pass was always a part of Bashahr has been attested by travellers.