|1910 Map showing an demarcated trijunction|
He quoted time and again the 1890 which was not a valid agreement as the main stakeholders (Tibet, Bhutan and Sikkim) had not been consulted.
I explained why on this blog and mentioned the Tibetan reactions and the non-acceptance of the 1890 Convention by Lhasa.
During the 1965 Indo-Pakistan War, China threatened to intervene and cross the border. It is probably at that time when the first incursions near the trijunction took place.
Later, Chinese incursions continued.
Already then, it was very clear for India that the trijunction was located at Batang La and not at Gyemochen as claimed by Beijing.
India and Bhutan have consistently claimed this.
The letter posted below is another proof of it.
In 1966, Delhi wrote:
The traditional frontier in this segment runs from a point east of Batang La along the ridge which forms the northern water parting of the Torsa stream up to Sinchel La and thence to height 4421 metres.Here is the full letter.
Note given by the Ministry of External Affairs, New Delhi to the Embassy of China in India on 30 September, 1966 (No. C/14/66) as published in the White Papers on China.
The Ministry of External Affairs present their compliments to the Embassy of the People's Republic of China and have the honour to state that the Government of Bhutan have requested the Government of India to draw the attention of the Chinese Government to a series of intrusions in the Doklan pasture area which lies south of the traditional boundary between Bhutan and the Tibet region of China in the southern Chumbi area.
It is reported that on the 13th of April 1966, a patrol of the Royal Bhutanese Army observed that a Chinese patrol of 13 men had intruded about three miles south-west of Sinchel La.
- On the 28th July 1966, another Bhutanese patrol found a party of 5 Tibetans with approximately 300 yaks encamped about two miles south of Sinchel La. The Tibetan graziers were informed by the Bhutanese patrol that they were in Bhutanese territory and asked to withdraw.
- Again on the 8th of September 1966, a Bhutanese patrol found Tibetan graziers in the area in question. It was further discovered that two heaps of loose stones had recently been set up in the area with a view presumably to establishing a claim south of the traditional frontier.
- Again on the 13th of September 1966, a Bhutanese patrol found not only that the graziers from the Tibet region of China were continuing to use these pastures but a part of Chinese troops had also intruded into the same area and had dug fresh trenches.
The traditional frontier in this segment runs from a point east of Batang La along the ridge which forms the northern water parting of the Torsa stream up to Sinchel La and thence to height 4421 metres.
The Government of India, on behalf of the Royal Bhutan Government, protest against these intrusions and urge that the Chinese personnel and troops should be withdrawn from Bhutanese territory and should refrain from future violations of this well-defined and traditional Bhutanese frontier.
The Ministry of External Affairs take this opportunity to renew to the Embassy of the People's Republic of China the assurances of their highest consideration.