Chinese-claimed border with Bhutan
Doklam or Zhoglam (in Standard Tibetan), known as Donglang in the Chinese language, is an area with a plateau and a valley, lying between Tibet's Chumbi Valley to the north, Bhutan's Ha Valley to the east and India's Sikkim state to the west. It has been depicted as part of Bhutan in the Bhutanese maps since 1961, but it is also claimed by China. To date, the dispute has not been resolved despite several rounds of border negotiations between Bhutan and China. The area is of strategic importance to all three countries.
In June 2017 a military standoff occurred between China and India as China attempted to extend a road on the Doklam plateau southwards near the Doka La pass and Indian troops moved in to prevent the Chinese. India claimed to have acted on behalf of Bhutan, with which it has a 'special relationship'. Bhutan has formally objected to China's road construction in the disputed area.
- 1 Geography
- 2 Strategic significance
- 3 History
- 4 Sino-Bhutanese border dispute at Doklam
- 5 2017 Doklam standoff
- 6 See also
- 7 Notes
- 8 References
- 9 Bibliography
- 10 External links
|Prevailing border of Bhutan on OpenStreetMap; Sikkim to the west and Chumbi Valley to the north|
The Imperial Gazetteer of India, representing the 19th century British view of the territory, states that the Dongkya range that separates Sikkim from the Chumbi Valley bifurcates at Mount Gipmochi into two great spurs, one running south-west and the other running south-east. Between these two spurs runs the valley of the Dichul or Jaldhaka river.
However, the Dongkya range that normally runs in the north–south direction gently curves to east–west at the southern end of the Chumbi Valley, running through the Batang La and Sinchela passes and sloping down to the plain. A second ridge to the south, called the Zompelri or Jampheri ridge, runs in parallel to the first ridge, separated by the Doklam or Doka La valley in the middle. At the top of the valley, the two ridges are joined, forming a plateau. The highest points of the plateau are on its western shoulder, between Batang La and Mount Gipmochi, and the plateau slopes down towards the southeast. A stream flows down the Doklam valley collecting the run-off water from the plateau, and joins the Amo Chu river about 15 km to the southeast.
India's Sikkim state lies to the west of the Dongkya range, the western shoulder of the Doklam plateau and the 'southwest spur' of the Dongkya range at the south. The Zompelri ridge separates Bhutan's Haa District (to the north) and the Samtse (to the south). Bhutan's claimed border runs along the northern ridge of the Doklam plateau until Sinchela and then moves down the valley to the Amo Chu river. China's claim of the border includes the entire Doklam area within the Chumbi Valley, ending at the Zompelri ridge on the south and the joining point of the Doklam river on the east.
Scholar Susan Walcott counts China's Chumbi Valley, to the north of Doklam, and India's Siliguri Corridor, to the south of Doklam, among "strategic mountain chokepoints critical in global power competition". John Garver has called the Chumbi Valley "the single most strategically important piece of real estate in the entire Himalayan region". The Chumbi Valley intervenes between Sikkim and Bhutan south of the high Himalayas, pointing towards India's Siliguri Corridor like a "dagger". The latter is a narrow 24 kilometer-wide corridor between Nepal and Bangladesh in India's West Bengal state, which connects the central parts of India with the northeastern states including the contested state of Arunachal Pradesh. Often referred to as the "chicken's neck", the Siliguri Corridor represents a strategic vulnerability for India. It is also of key strategic significance to Bhutan, containing the main supply routes into the country.
Historically, both Siliguri and Chumbi Valley were part of a highway of trade between India and Tibet. In the 19th century, the British Indian government sought to open up the route to British trade, leading to their suzerainty over Sikkim with its strategic Nathu La and Jelep La passes into the Chumbi Valley. Following the Anglo-Chinese treaty of 1890 and Younghusband expedition, the British established trading posts at Yatung and Lhasa, along with military detachments to protect them. These trade relations continued till 1959, when the Chinese government terminated them. The Doklam area, however, had little role in these arrangements because the main trade routes were either through the Sikkim passes or through the interior of Bhutan entering the Chumbi Valley in the north near Phari. There is some fragmentary evidence of trade through the Amo Chu valley, but the valley is said to have been narrow with rocky faces with a torrential flow of the river, not conducive for a trade route.
Indian intelligence officials state that China had been carrying out a steady military build-up in the Chumbi Valley, building many garrisons and converting the valley into a strong military base. In 1967, border clashes occurred at Nathu La and Cho La passes, when the Chinese contested the Indian demarcations of the border on the Dongkya range. In the ensuing artillery fire, states scholar Taylor Fravel, many Chinese fortifications were destroyed as the Indians controlled the high ground. In fact, the Chinese military is believed to be in a weak position in the Chumbi Valley because the Indian and Bhutanese forces control the heights surrounding the valley.
The desire for heights is thought to bring China to the Doklam plateau. Indian security experts mention three strategic benefits to China from a control of the Doklam plateau. First, it gives it a commanding view of the Chumbi valley itself. Second, it outflanks the Indian defences in Sikkim which are currently oriented northeast towards the Dongkya range. Third, it overlooks the strategic Siliguri Corridor to the south. A claim to the Mount Gipmochi and the Zompelri ridge would bring the Chinese to the very edge of the Himalayas, from where the slopes descend into the southern foothills of Bhutan and India. From here, the Chinese would be able to monitor the Indian troop movements in the plains or launch an attack on the vital Siliguri corridor in the event of a war. To New Delhi, this represents a "strategic redline". Scholar Caroline Brassard states, "its strategic significance for the Indian military is obvious."
The historical status of the Doklam plateau is uncertain.
According to the Sikkimese tradition, when the Kingdom of Sikkim was founded in 1642, it included all the areas surrounding the Doklam plateau: the Chumbi Valley to the north, the Haa Valley to the east as well as the Darjeeling and Kalimpong areas to the southwest. During the 18th century, Sikkim faced repeated raids from Bhutan and these areas often changed hands. After a Bhutanese attack in 1780, a settlement was reached, which resulted in the transfer of the Haa valley and the Kalimpong area to Bhutan. The Doklam plateau sandwiched between these regions is likely to have been part of these territories. The Chumbi Valley was still said to have been under the control of Sikkim at this point.
However, historians doubt this narrative. Saul Mullard states that the early kingdom of Sikkim was very much limited to the western part of modern Sikkim. The eastern part was under the control of independent chiefs, who did face border conflicts with the Bhutanese, losing the Kalimpong area. The possession of the Chumbi Valley by the Sikkimese is uncertain, but the Tibetans are known to have fended off Bhutanese incursions there.
After the unification of Nepal under the Gorkhas in 1756, Nepal and Bhutan had coordinated their attacks on Sikkim. Bhutan was eliminated from the contest by an Anglo-Bhutanese treaty in 1774. Tibet enforced a settlement between Sikkim and Nepal, which is said to have irked Nepal. Following this, by 1788, Nepal occupied all of the Sikkim areas to the west of the Teesta river as well as four provinces of Tibet. Tibet eventually sought the help of China, resulting in the Sino-Nepalese War of 1792. This proved to be a decisive entry of China into the Himalayan politics. The victorious Chinese General ordered a land survey, in the process of which the Chumbi valley was declared as part of Tibet. The Sikkimese resented the losses forced on them in the aftermath of the war.
In the following decades, Sikkim established relations with the British East India Company and regained some of its lost territory after the Anglo-Nepalese War. However, the relations with the British remained rocky and the Sikkimese retained loyalties to Tibet. The British attempted to enforce their suzerainty via the Treaty of Tumlong in 1861. In 1890, they sought to exclude the Tibetans from Sikkim by establishing a treaty with the Chinese, who, they believed, exercised suzerainty over Tibet. The Anglo-Chinese treaty recognised Sikkim as a British protectorate and defined the border between Sikkim and Tibet as the northern watershed of the Teesta River (on the Dongkya range), starting at "Mount Gipmochi". However, what was meant by "Mount Gipmochi" is unclear and no land surveys of the area had been done prior to the treaty. Some British travel maps from the 19th century (prior to official surveys) mark the Doklam plateau itself as the "Gipmochi Pk" and show its location adjacent to the Sinchela pass (on the northern ridge of the plateau). In 1904, the British signed another treaty with Tibet, which confirmed the terms of the Anglo-Chinese treaty. The boundary established between Sikkim and Tibet in the treaty still survives today, according to scholar John Prescott.
Bhutan became a protected state (though not a 'protectorate') of British India in 1910, an arrangement that was continued by independent India in 1949. However, Bhutan retained its independence in all internal matters and its borders were not demarcated until 1961. It is said that the Chinese cite maps from before 1912 to stake their claim over Doklam.
Sino-Bhutanese border dispute at Doklam
|Chinese road construction between Sinchela and Doka La, believed to have been carried out between 2004–2005.|
Authoritative depictions of historical Chinese maps by the People's Republic of China show Sikkim and Bhutan as part of Tibet or China for a period of 1800 years, starting from the second century B.C.[b] From 1958, Chinese maps started showing large parts of Bhutanese territory as part of China. In 1960, China issued a statement claiming that Bhutan, Sikkim and Ladakh were part of a unified family in Tibet and had always been subject to the "great motherland of China".[c] Alarmed, Bhutan closed off its border with China and shut all trade and diplomatic contacts. It also established formal defense arrangements with India.
Starting August 1965, China and India traded accusations regarding intrusions into Doklam. China alleged that Indian troops were crossing into Doklam (which they called "Dognan") from Doka La, and were carrying out reconnaissance and intimidating Chinese herders. At first, the Indians paid no attention to the complaint. However, after several rounds of exchanges, on 30 September 1966, they forwarded a protest from the Bhutanese government which stated that Tibetan grazers were entering the pastures near the Doklam plateau accompanied by Chinese patrols. The letter asserted that the Doklam area was to the "south of the traditional boundary between Bhutan and the Tibet region" in the southern Chumbi area. On 3 October, the Government of Bhutan issued a press statement in which it said, "this area is traditionally part of Bhutan and no assertion has been made by the Government of the People's Republic of China disputing the traditional frontier which runs along recognizable natural features."[d][e]
In response, the Chinese government replied that Bhutan was a sovereign country and that China did not recognize any role for the Indian government in the matter. It also asserted that the Doklam area had "always been under Chinese jurisdiction", that the Chinese herdsmen had "grazed cattle there for generations" and that the Bhutanese herdsmen had to pay pasturage to the Chinese side to graze cattle there.[f]
China later formally extended claims to 300 sq. miles of territory in northern Bhutan and areas north of Punakha, but apparently not in Doklam. Bhutan requested the Indian government to raise the matter with China. However, China rejected India's initiatives stating that the issue concerned China and Bhutan alone. Indian commentators state that the Chinese troops withdrew after a month and that the fracas over Doklam brought Bhutan even closer to India, resulting in the appointment of 3,400 Indian defence personnel in Bhutan for training the Bhutanese Army.
Border negotiations between Bhutan and China began in 1972 with India playing a supporting role. However, China sought the exclusion of India. Bhutan commenced its own border negotiations with China in 1984. Prior to putting forward its claim line, it carried out its own surveys and produced maps that were approved by the National Assembly in 1989. Strategic expert Manoj Joshi states that the Bhutanese voluntarily shed territory in the process. Other scholars noted a reduction of 8,606 km2 area in the official Bhutanese maps. The Kula Kangri mountain, touted as the tallest peak in Bhutan, has apparently been ceded to China. Bhutan said that, through the course of border talks, it had reduced 1,128 km2 of disputed border areas to 269 km2 by 1999. In 1996, the Chinese negotiators offered a "package deal" to Bhutan, offering to give up claims on 495 km2 in the central region in exchange for 269 km2 in the "northwest", i.e., adjacent to the Chumbi valley, including Doklam, Sinchulumpa, Dramana and Shakhatoe. These areas would offer strategic depth to Chinese defences and access to the strategic Siliguri Corridor of India. Bhutan turned down the offer, repotedly under Indian persuasion.
Having turned down China's package deal, in 2000, Bhutanese government put forward its original claim line of 1989. The talks could make no progress afterwards. The government reported that, in 2004, China started building roads in the border areas, leading to repeated protests by the Bhutanese government based on the 1998 Peace and Tranquility Agreement. According to a Bhutanese reporter, the most contested area has been the Doklam plateau. Chinese built a road up the Sinchela pass (in undisputed territory) and then over the plateau (in disputed territory), leading up to the Doka La pass, until reaching within 68 metres to the Indian border post on the Sikkim border. Here, they constructed a turn-around facilitating vehicles to turn back. This road has been in existence at least since 2005. In 2007, there were reports of the Chinese having destroyed unmanned Indian forward posts on the Doklam plateau.
Bhutan's position was described in 2002:
His Majesty the King explained to the members of National Assembly that there were, basically, four disputed areas between Bhutan and China. Starting from Doklam in the west the border goes along the ridges from Gamochen to Batangla, Sinchela, and down to the Amo Chhu. The disputed area in Doklam covered 89 square kilometers....— KuenselOnline 
In 2004, Bhutan's Secretary for International Borders reported the same claims to the National Assembly.
China claims the Doklam area as Chinese territory based on the Anglo-Chinese Convention of 1890, negotiated between the British Empire in India and the Chinese royal mission. The treaty states that representatives of Sikkim and Tibet were part of these negotiations, but records show that they were not present during the negotiations in Calcutta. The territorial boundary between Sikkim and Tibet was delineated in the Article I of the treaty in the following manner:
The boundary of Sikkim and Tibet shall be the crest of the mountain range separating the waters flowing into the Sikkim Teesta and its affluents from the waters flowing into the Tibetan Mochu and northwards into other Rivers of Tibet. The line commences at Mount Gipmochi on the Bhutan frontier, and follows the above-mentioned water-parting to the point where it meets Nipal territory" .— Anglo-Chinese treaty of 1890
Mochu is the Tibetan name for the Amo Chu river. Gipmochi is mentioned in the Article as being on the Bhutan border, but no further details regarding Bhutan were given. Bhutan was not a signatory to the Anglo-Chinese treaty.
The Diplomat has commented that the continuous mountain crest or watershed mentioned in the first sentence of the 1890 treaty appears to begin very near Batang La, on the northern ridge of the Doklam plateau, and that this suggests a contradiction between the first and second sentences of the above article of the treaty. This Batang La location is depicted and claimed as the trijunction point by Bhutan and India.
According to scholar Srinath Raghavan, the watershed principle in the first sentence implies that the Batang La–Merug La–Sinchela ridge should be the China–Bhutan border because both Merug La, at 15,266 feet (4,653 m), and Sinchela, at 14,531 feet (4,429 m), are higher than Gipmochi at 14,523 feet (4,427 m).
Bhutan and China border agreements 1988 and 1998
Bhutan and China have held 24 rounds of boundary talks since it began in 1984. The Royal Government of Bhutan claims that the present road construction on the Doklam Plateau amounts to unilateral change to a disputed boundary by China in violation of the 1988 and 1998 agreements between the two nations. The agreements also prohibit he use of force and encourage both parties to strictly adhere to use peaceful means.
"Boundary talks are ongoing between Bhutan and China and we have written agreements of 1988 and 1998 stating that the two sides agree to maintain peace and tranquility in their border areas pending a final settlement on the boundary question, and to maintain status quo on the boundary as before March 1959. The agreements also state that the two sides will refrain from taking unilateral action, or use of force, to change the status quo of the boundary."
Notwithstanding the agreement, the PLA crossed into Bhutan in 1988 and took control of the Chumbi Valley near the Doklam plateau. There were reports of the PLA troops threatening the Bhutanese guards, declaring it to be Chinese soil, and seizing and occupying Bhutanese posts for extended periods. Again, after 2000, numerous intrusions, grazing and road and infrastructure construction by the Chinese were reported as reported in the Bhutanese National Assembly.
2017 Doklam standoff
|Doka La – the site of Doklam standoff|
In June 2017, Doka La became the site of a stand-off between the armed forces of India and China following an attempt by China to extend a road from Yadong further southward on the Doklam plateau. India does not have a claim on Doklam but it supports Bhutan's claim on the territory. According to the Bhutanese government, China attempted to extend a road that previously terminated at Doka La towards the Bhutan Army camp at Zompelri two km to the south; that ridge, viewed as the border by China but as wholly within Bhutan by both Bhutan and India, extends eastward overlooking India's highly-strategic Siliguri corridor. On 18 June, Indian troops crossed into the territory in dispute between China and Bhutan in an attempt to prevent the road construction.
India's entry into the dispute is explained by the extant relations between India and Bhutan. In a 1949 treaty, Bhutan agreed to let India guide its foreign policy and defence affairs, making it a protected state of India. In 2007, that treaty was superseded by a new friendship treaty that made it mandatory on Bhutan to take India's guidance on foreign policy, but providing it broader sovereignty in other matters such as arms imports.
India charges that China has violated this 'peace agreement' by trying to construct roads in Doklam.
India has criticised China for "crossing the border" and attempting to construct a road (allegedly done "illegally"), while China has criticised India for entering its "territory".
On 29 June 2017, Bhutan protested the Chinese construction of a road in the disputed territory. The Bhutanese border was put on high alert and border security was tightened as a result of the growing tensions. On the same day, China released a map depicting Doklam as part of China, claiming, via the map, that all territory up to Gipmochi belonged to China by the 1890 Britain-China treaty.
On 3 July 2017, China told India that former Indian prime minister Jawaharlal Nehru accepted the 1890 Britain-China treaty. Contrary to Chinese claim, Nehru’s 26 September 1959 letter to Zhou, cited by China, was a point-by-point refutation of the claims made by the latter on 8 September 1959. Nehru made it amply clear in his rebuttal that the 1890 treaty defined only the northern part of the Sikkim-Tibet border and not the tri-junction area.
China claimed on 5 July 2017 that there was a "basic consensus" between China and Bhutan that Doklam belonged to China, and there was no dispute between the two countries. The Bhutanese government in August 2017 denied that it had relinquished its claim to Doklam.
In a 15-page statement released on 1 August 2017, the Foreign Ministry in Beijing accused India of using Bhutan as "a pretext" to interfere and impede the boundary talks between China and Bhutan. The report referred to India's "trespassing" into Doklam as a violation of the territorial sovereignty of China as well as a challenge to the sovereignty and independence of Bhutan.
Chinese diplomat Wang Wengli claimed that Bhutan did not claim the territory, but this was unsubstantiated.
The Chinese government maintains that, from historical evidence, Donglang (Doklam) has always been traditional pasture area for the border inhabitants of Yadong, a county in its autonomous region of Tibet, and that China had exercised good administration over the area. It also says that before the 1960s, if the border inhabitants of Bhutan wanted to herd in Doklam, they needed the consent of the Chinese side and had to pay the grass tax to China.[better source needed][full citation needed]
After issuing a press statement on 29 June 2017, the Bhutanese government and media maintained a studious silence. The Bhutanese clarified that the land on which China was building a road was "Bhutanese territory" that was being claimed by China, and it is part of the ongoing border negotiations. It also defended the policy of silence followed by the Bhutanese government, saying "Bhutan does not want India and China to go to war, and it is avoiding doing anything that can heat up an already heated situation." However, ENODO Global, having done a study of social media interactions in Bhutan, recommended that the government should "proactively engage" with citizens and avoid a disconnect between leaders and populations. ENODO found considerable anxiety among the populace regarding the risk of war between India and China, and the possibility of annexation by China similar to that of Tibet in 1951. It found a strengthening of Bhutanese resolve, identity and nationalism, not wanting to be "pushovers".
The New York Times said that it encountered more people concerned about India's actions than China's. It found expressions of sovereignty and concern that an escalation of the border conflict would hurt trade and diplomatic relations with China. ENODO did not corroborate these observations. Rather it said that hundreds of Twitter hashtags were created to rally support for India and that there was a significant blowback over the Xinhua television programme titled "7 sins" that castigated India. Scholar Rudra Chaudhuri, having toured the country, noted that Doklam is not as important an issue for the Bhutanese as it might have been ten years ago. Rather the Bhutanese view a border settlement with China as the top priority for the country. While he noticed terms such as "pro-Chinese" and "anti-Indian" often used, he said that what they meant was not well-understood.
On August 28, 2017, it was announced that India and China had mutually agreed to a speedy disengagement on the Doklam plateau bringing an end to the military face-off that lasted for close to three months. The Chinese foreign ministry sidestepped the question of whether China would continue the road construction.
-  This is incorrect. The Doklam plateau is indeed to the south of the Chumbi valley. The disputed area to the east has no single name, but various parts of it are called Sinchulumpa (or Sinchulung), Giu and Dramana.
- Garver, Protracted Contest (2011, pp. 167–168): "As is the case of putative 'tributary relations' between China's imperial court and foreign rulers, independent scholars see modern Chinese historiography as deeply biased by nearly exclusive reliance on Chinese sources and a nationalist urge to demonstrate China's ancient influence over as wide-ranging an area as possible. Leo Rose's response to these Chinese views was that 'Sikkim and Bhutan were never under any form of control by the Chinese government, or, for that matter, of Tibet except for a short period in the nineteenth century.'"
- The statement attributed to Chang Kuow-Hua, the head of the Chinese Mission in Tibet, made in a public meeting in Lhasa on 17 July 1959: "Bhutanese, Sikkimise and Ladakhis formed a united family in Tibet; they have been subjects of Tibet and the great motherland of China and must once again be united and taught the Communist doctrine." This passage was apparently deleted from the version reported in China Today, but it was reported in The Daily Telegraph by George N. Patterson, its Kalimpong correspondent and later repeated in the Hindustan Times. Patterson reports that when Prime Minister Nehru raised the matter with China, "he was bluntly informed that China’s claims to these border territories were based on the same claim as for their invasion of Tibet."
- A sample of exchanges:
- Government of China, 27 August 1965: "On July 3, at about 1900 hours, a group of five Indian soldiers crossed the China-Sikkim border and intruded into Dongnan grassland in Tibet, China. They carried out reconnaissance and harassment for as long as four days within Chinese territory before leaving China near Tungchu La at about 1300 hours on July 7."
- Government of India, 2 September 1965: "No Indian soldier has crossed into Chinese territory. As a matter of fact, the Indian troops have strict instructions not to go beyond the boundary of Sikkim with Tibet."
- Government of China, 31 January 1966: "...four Indian soldiers crossed Toka La and intruded into Tunglang pasture in Dongnan grassland, and with their weapons intimidated Chinese herdsmen who were grazing cattle there."
- Government of India, 30 September 1966: "...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."
- Press Statement of 3rd October, 1966, issued on behalf of the Bhutan Government by its Trade Adviser in Calcutta: "His Majesty's Government of Bhutan had for some time, been concerned with reports received from its patrols of a number of intrusions by Tibetan graziers and Chinese troops in the Doklam pastures which are adjacent to the southern part of the Chumbi Valley. This area is traditionally part of Bhutan and no assertion has been made by the Government of the People's Republic of China disputing the traditional frontier which runs along recognizable natural features. In the area of the intrusion, the boundary runs along the water-parting along Batang La to Sinchel La. Local attempts were made to inform the graziers and the Chinese troops that they had strayed into Bhutanese territory but these have not been heeded."
- Hsinhua News Agency, 27 October 1966: "China has consistently respected Bhutan's sovereignty and territorial integrity....It is true that the China-Bhutan boundary has never been formally delimited and if the Bhutanese side's understanding is not quite the same as that of the Chinese side as regards the alignment of the boundary between the two countries at certain specific points, a fair and reasonable solution can very well be found through consultations on an equal footing... Nevertheless it must be explicitly pointed out that the boundary question between China and Bhutan is a matter that concerns China and Bhutan alone and has nothing to do with the Indian Government which has no right whatsoever to intervene in it."
- Ramakrushna Pradhan, Doklam Standoff: Beyond Border Dispute, Mainstream Weekly, 29 July 2017.
- "Doklam standoff: China sends a warning to India over border dispute". Los Angeles Times. Associated Press. 24 July 2017. Archived from the original on 25 July 2017. Retrieved 11 August 2017.
- Liu Lin, India-China Doklam Standoff: A Chinese Perspective Archived 29 July 2017 at the Wayback Machine., The Diplomat, 27 July 2017.
- Ankit Panda, The Political Geography of the India-China Crisis at Doklam Archived 14 July 2017 at the Wayback Machine., The Diplomat, 13 July 2017.
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- "Translation of the Proceedings and Resolutions of the 82nd Session of the National Assembly Of Bhutan" (PDF). June–August 2004. p. 84. Archived (PDF) from the original on 7 October 2015. Retrieved 20 July 2017.
- People say in Doklam, India is better placed. Why do we think Chinese could only act here? says Shyam Saran Archived 13 August 2017 at the Wayback Machine., The Indian Express, 12 August 2017.
- Walcott, Bordering the Eastern Himalaya (2010), p. 75.
- "Press Release – Ministry of Foreign Affairs". www.mfa.gov.bt. Retrieved 6 July 2017.
- Imperial Gazetteer of India: Provincial Series, Usha, 1984, p. 487
- China Foreign Ministry (2017), Appendix I.
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- Smith, Bhutan–China Border Disputes and Their Geopolitical Implications (2015), pp. 29–30.
- Walcott, Bordering the Eastern Himalaya (2010), p. 64.
- Garver, Protracted Contest 2011, p. 167.
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- Walcott, Bordering the Eastern Himalaya (2010), p. 70.
- Chandran & Singh, India, China and Sub-regional Connectivities (2015), pp. 45–46.
- Aadil Brar, The Hidden History Behind the Doklam Standoff: Superhighways of Tibetan Trade Archived 22 August 2017 at the Wayback Machine., The Diplomat, 12 August 2017.
- Fraser, Neil; Bhattacharya, Anima; Bhattacharya, Bimalendu (2001), Geography of a Himalayan Kingdom: Bhutan, Concept Publishing Company, p. 28, 123, ISBN 978-81-7022-887-5, archived from the original on 27 August 2017
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- Bajpai, China's Shadow over Sikkim (1999), p. vii.
- Fravel, Strong Borders, Secure Nation (2008), p. 198.
- Ajai Shukla, The Sikkim patrol Broadsword Archived 22 August 2017 at the Wayback Machine., Business Standard, 4 July 2017.
- Lt Gen H. S. Panag, India-China standoff: What is happening in the Chumbi Valley? Archived 18 August 2017 at the Wayback Machine., Newslaundry, 8 July 2017.
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- Harris, Area Handbook for Nepal, Bhutan and Sikkim (1977), pp. 387–388.
- Mullard, Opening the Hidden Land (2011), pp. 147-150.
- Shakabpa, Tibet: A Political History (1984), p. 122.
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- Shakabpa, Tibet: A Political History (1984), p. 157.
- Bajpai, China's Shadow over Sikkim (1999), pp. 17-19.
- Mullard, Opening the Hidden Land (2011), pp. 178–179.
- Mullard, Opening the Hidden Land (2011), pp. 183–184.
- Prescott, Map of Mainland Asia by Treaty (1975), pp. 261–262.
- Shakabpa, Tibet: A Political History (1984), p. 217.
- Phuntsho, The History of Bhutan (2013), p. 405.
- Kharat, Rajesh (2009), "Indo-Bhutan relations: Strategic perspectives", in K. Warikoo, Himalayan Frontiers of India: Historical, Geo-Political and Strategic Perspectives, Routledge, p. 139, ISBN 978-1-134-03294-5, archived from the original on 27 August 2017
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