India-China Border: Post-Galwan Dynamics and Border Infrastructure

The question reads: "With reference to India-China border tensions since 2020, consider the following statements:"

The Galwan Valley clash on June 15, 2020, killed 20 Indian soldiers and an unknown number of Chinese troops. It was the first fatal conflict between the two nuclear-armed neighbours since the 1967 Nathu La clash. Five years later, the border situation is "stable but not normal" — India's official formulation. 20+ rounds of military talks, three rounds of Foreign Secretary-level talks, and a disengagement agreement from 4 of 6 friction points have not restored the status quo ante. The LAC is more militarized than ever, with an estimated 1,00,000 troops on each side in the Eastern Ladakh sector.

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[TOPIC CLASSIFICATION]

• Topic type: Internal Security (border management, territorial disputes) + International Relations (India-China rivalry)
• PYQ frequency: High (consistent GS-3 and GS-2 topic since 2020, with direct and indirect questions)
• Exam stage: Prelims (border passes, LAC vs LOC, names of friction points) + Mains GS-3 (internal security: border security) + GS-2 (IR: India-China relations)
• Primary GS paper: GS-3 (Internal Security — border management, security challenges)

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[EXAMINER REASONING]

1. Primary trap. Candidates confuse the Line of Actual Control (LAC) with the Line of Control (LoC). The LAC is the de facto border between India and China — not a formally demarcated boundary, but a mutual recognition of control. The LoC is the ceasefire line between India and Pakistan in Jammu and Kashmir (created after the 1971 war, Simla Agreement). They are different entities. Statements that say "India and China have agreed to resolve the LoC issue" are designed to trap — the LoC is with Pakistan, not with China.
2. Most confused. The "buffer zones" concept. After the 2020 clashes, India and China created "buffer zones" (temporary disengagement zones) at friction points — areas where troops are withdrawn, no patrols are conducted, and no permanent structures are built. These are NOT demilitarised zones — troops are stationed just behind the buffer. The size of buffer zones differs by location (Pangong Tso: 2-4 km buffer from the bank; Gogra-Hot Springs: 1.5 km buffer). The UPSC trap: calling buffers "demilitarised zones" (false — troops are present nearby).
3. Key anchor. The three-stage disengagement process: (1) Disengagement — troops physically separate from face-off positions, create buffer zones (completed at 4 of 6 friction points as of June 2026); (2) De-escalation — reduction of troops to pre-2020 levels in the broader sector (NOT completed — troop levels remain elevated 3-4x above pre-2020); (3) Resolution — agreement on the LAC alignment, patrolling rights, and future conflict prevention mechanisms (NOT started — no political-level agreement).