UPSC GS Paper II: International Relations, India-China Relations, Border Disputes, LAC, Doklam, Galwan

Must?Know

• The Line of Actual Control (LAC) is approximately 3,488 km long, dividing Indian and Chinese controlled areas; it is not legally demarcated and differs in perception by both countries, leading to frequent standoffs.
• The 1962 Sino-Indian War resulted in Chinese victory and occupation of Aksai Chin (now under China’s administration as part of Xinjiang and Tibet), while India retained control of Arunachal Pradesh (claimed by China as South Tibet).
• The Johnson Line (1865), proposed by British surveyor W.H. Johnson, placed Aksai Chin within Jammu and Kashmir; China rejects this as colonial imposition.
• The McMahon Line (1914), drawn during the Simla Convention, forms the eastern sector of the LAC and is accepted by India as the legal boundary; China rejects it, calling it a product of British imperialism.
• Simla Convention (1914) involved British India, Tibet, and China; China signed but later repudiated it, arguing Tibet was not sovereign and could not sign treaties.
• The 1993 Agreement on the Maintenance of Peace and Tranquility along the LAC established confidence-building measures, including prior notification of troop movements and restriction on use of firearms within 2 km of the LAC.
• The 1996 Agreement on Confidence-Building Measures in the Military Field along the LAC prohibited threats or use of force, required military exercises to be non-threatening, and introduced mechanisms for resolution of border incidents.
• The Special Representatives (SR) mechanism for boundary talks was established in 2003; the first SRs were NSA Brajesh Mishra (India) and Dai Bingguo (China).
• The 2005 Agreement on Political Parameters and Guiding Principles for Settlement of the India-China Boundary Question outlined a three-step process: confirmation of the LAC, exchange of maps, and final settlement based on "mutual and equal security".
• The 2012 Chumar standoff occurred in eastern Ladakh; it was resolved through diplomatic talks and reaffirmed the need for clarification of LAC alignment.
• The 2013 Depsang standoff in Ladakh lasted three weeks; Chinese troops withdrew after India protested and linked resolution to broader strategic dialogue.
• The 2017 Doklam standoff lasted 73 days; triggered when China attempted road construction in Doklam plateau, which India claims is trijunction area between India, China, and Bhutan, and where India has security interests due to the proximity to the Siliguri Corridor.
• India intervened in Doklam citing a 2012 agreement with Bhutan allowing India to guide Bhutan’s foreign and defense policy; China claimed Doklam is its territory based on 1890 Anglo-Chinese Convention.
• The 1890 Anglo-Chinese Treaty (Convention of Calcutta) defined the boundary between Sikkim and Tibet, which India interprets as placing Doklam under Bhutanese control; China uses it to assert sovereignty over Doklam.
• The Galwan Valley clash (June 15, 2020) resulted in the first combat fatalities on the LAC since 1975; 20 Indian soldiers, including Colonel B. Santosh Babu, were killed; China acknowledged casualties only in 2021 (four dead).
• The Galwan clash occurred in the western sector of the LAC, in Ladakh’s eastern Karakoram range; it was triggered by Indian construction of infrastructure near the LAC, opposed by China.
• Post-Galwan, India banned over 300 Chinese apps, including TikTok and WeChat, citing national security under Section 69A of the IT Act, 2000.
• India accelerated infrastructure development post-2020: completed the Darbuk-Shyok-Daulat Beg Oldie (DSDBO) road, enhancing military mobility in Ladakh.
• The 2021 disengagement agreements in Pangong Tso involved mutual withdrawal from friction points like Finger 4 to Finger 8; however, patrolling rights remain restricted.
• The five-point consensus issued after the 2020 Wuhan Summit (between Modi and Xi) emphasized peaceful resolution, but no progress was made on de-escalation prior to Galwan.
• The 2022 disengagement at Gogra Post (Patrolling Point 15) ended a two-year standoff; both sides pulled back troops and equipment, but no permanent border resolution was achieved.
• The LAC is divided into three sectors: western (Ladakh and Kashmir), middle (Uttarakhand and Himachal Pradesh), and eastern (Sikkim and Arunachal Pradesh); maximum disputes occur in the western sector.
• The 1986 Sumdorong Chu standoff in Arunachal Pradesh led to the formation of the LAC concept in official discourse and preceded the 1988 Rajiv Gandhi visit to Beijing.
• The 1988 Rajiv Gandhi–Deng Xiaoping summit restored diplomatic relations after 1962 war and initiated the process of border dialogue and confidence-building.
• India does not recognize China’s claim over Aksai Chin or its renaming of places in Arunachal Pradesh (e.g., “South Tibet”), calling such acts “illegal and void”.

Difficulty Level

Hard – due to overlapping territorial perceptions, evolving military dynamics, and frequent standoffs requiring integration of historical, geographical, and diplomatic knowledge.

Common UPSC Traps

Trap: Doklam is part of Bhutan’s undisputed territory and India has no legal basis to intervene – Fact: India and Bhutan have a 2007 Friendship Treaty allowing India to take into account Bhutan’s security interests; India’s intervention in Doklam was based on strategic necessity and bilateral understanding, not direct territorial claim.

Trap: The McMahon Line is legally binding under international law – Fact: While India treats the McMahon Line as the official boundary, China has never accepted it; the Simla Convention was not ratified by the Chinese government, rendering it disputed under international law.

Trap: The LAC is clearly defined and mutually agreed upon – Fact: The LAC exists only in differing perceptions: India claims it to be 3,488 km based on actual control, while China’s version is shorter and excludes areas like Aksai Chin and Arunachal Pradesh.

Trap: Galwan Valley is in the middle sector of the LAC – Fact: Galwan Valley is in the western sector of the LAC, in eastern Ladakh, near the confluence of the Galwan and Shyok rivers.

Practice MCQs

Question: Which of the following statements best describes the significance of the 1890 Anglo-Chinese Convention in the context of India-China relations?
A) It established the McMahon Line as the boundary between Tibet and British India
B) It defined the boundary between Sikkim and Tibet, later cited in the Doklam dispute
C) It recognized Chinese sovereignty over Aksai Chin
D) It demarcated the Line of Actual Control after the 1962 war
Answer: B
Explanation: The 1890 Convention of Calcutta defined the border between Sikkim (then a British protectorate) and Tibet, which China uses to justify its claim over Doklam.
Why others fail: A is incorrect because the McMahon Line was established in 1914, not 1890.

Question: The 2020 Galwan Valley clash occurred in which sector of the India-China border?
A) Eastern Sector
B) Middle Sector
C) Western Sector
D) Northern Sector
Answer: C
Explanation: Galwan Valley is located in eastern Ladakh, which falls under the western sector of the LAC.
Why others fail: A is tempting because most media coverage links China’s claim to Arunachal Pradesh (eastern sector), but Galwan is geographically in Ladakh.

Question: Which agreement between India and China first formally recognized the concept of the Line of Actual Control (LAC)?
A) 1962 Sino-Indian Border Agreement
B) 1993 Agreement on the Maintenance of Peace and Tranquility
C) 1988 Rajiv Gandhi-Deng Xiaoping Joint Statement
D) 2005 Agreement on Guiding Principles
Answer: B
Explanation: The 1993 Agreement was the first to formally refer to the LAC and commit both sides to maintain peace and tranquility along it.
Why others fail: C refers to a political understanding but did not include formal references to the LAC.

Question: India’s infrastructure development in Ladakh, such as the DSDBO road, is strategically significant because it:
A) Connects India to Nepal and enhances regional connectivity
B) Enables faster military deployment to the LAC in eastern Ladakh
C) Facilitates trade through the Nathu La pass
D) Runs through the Chumbi Valley
Answer: B
Explanation: The DSDBO road runs from Darbuk to Daulat Beg Oldie, enabling rapid movement of troops and supplies to forward areas along the LAC.
Why others fail: C refers to Sikkim, not Ladakh; Nathu La is in the eastern sector.

Question: The Special Representatives mechanism for resolving the India-China boundary question was established in:
A) 1996
B) 2003
C) 2005
D) 2010
Answer: B
Explanation: The SR mechanism was launched in 2003 during Prime Minister Atal Bihari Vajpayee’s tenure, with NSA Brajesh Mishra as India’s first SR.
Why others fail: A refers to the military CBM agreement, not the SR mechanism.

Question: Which of the following best reflects the outcome of the 2017 Doklam standoff?
A) China withdrew after India invoked the 1949 Indo-Bhutan Treaty
B) Bhutan formally ceded Doklam to India for defense management
C) China halted road construction, and both sides disengaged without altering status quo
D) India recognized Chinese sovereignty over Doklam in exchange for border stability
Answer: C
Explanation: After 73 days, China stopped road construction and withdrew, with both sides pulling back; no territorial changes were formalized.
Why others fail: A is incorrect because the 2007 treaty (not 1949) governs India-Bhutan defense cooperation.

Question: The Johnson Line is historically significant because it:
A) Was accepted by China during the 1954 Panchsheel Agreement
B) Placed Aksai Chin under Indian sovereignty, a claim India continues to uphold
C) Formed the basis of the 1914 Simla Convention
D) Defined the boundary between Tibet and Sikkim
Answer: B
Explanation: The Johnson Line, proposed in 1865, included Aksai Chin within Jammu and Kashmir; India considers it part of its territory despite Chinese occupation since 1962.
Why others fail: D refers to the 1890 Convention, not the Johnson Line.

Last?Minute Revision

• The LAC is not a legally recognized border but a de facto boundary with differing perceptions.
• The 1962 war began in October and ended in November; China declared unilateral ceasefire.
• Aksai Chin is under Chinese administration but claimed by India as part of Ladakh.
• Arunachal Pradesh is claimed by China as “South Tibet”.
• McMahon Line was drawn in 1914 during Simla Convention.
• Simla Convention: 1914, British India, Tibet, China; China repudiated it.
• 1890 Anglo-Chinese Convention: defined Sikkim-Tibet boundary.
• India and China have held 15 rounds of Corps Commander-level talks post-Galwan (as of 2023).
• Galwan clash: June 15, 2020.
• First fatality on LAC since 1975 (Tultok skirmish).
• DSDBO road: critical for military logistics in Ladakh.
• Doklam standoff: June–August 2017 (73 days).
• Chumar standoff: 2012.
• Depsang standoff: April–May 2013.
• 1993 Border Peace Agreement: first formal mention of LAC.
• 1996 Military CBM Agreement: prohibited use of force near LAC.
• 2003: SR mechanism established.
• 2005: Guiding Principles Agreement signed.
• 2012: Agreement allowing India to guide Bhutan’s defense policy.
• 2017 Wuhan informal summit: Modi-Xi meet, five-point consensus.
• 2020: India bans 59 Chinese apps in June, later expands to over 300.
• Pangong Tso disengagement: February 2021.
• Gogra Post disengagement: August 2022.
• India does not recognize Tibet as part of China; maintains ITBP outpost in Mansarovar (verify from standard source).
• Sumdorong Chu standoff: 1986–87, led to Rajiv Gandhi’s 1988 China visit.