Archive · 7 Jan 2026
India-China LAC Dispute and Arunachal Pradesh Claims
India and China have a long-standing dispute over their shared border, known as the Line of Actual Control (LAC).
This border was first discussed in 1914 during the Simla Conference, but China has never accepted the McMahon Line, which defines part of the boundary.
Over the years, both countries have had disagreements and conflicts, including a major clash in 2020.
China claims Arunachal Pradesh as part of 'South Tibet' and has been more aggressive in asserting its claims.
India, however, maintains control over the region and has reinforced its deterrence strategy.
The dispute is complex and involves historical, political, and strategic factors.
The McMahon Line, formalized in 1914, is not accepted by China, leading to ongoing border disputes.
The Line of Actual Control (LAC) was first mentioned by Chinese Premier Zhou Enlai in 1959.
India and China signed the Border Peace and Tranquility Agreement (BPTA) in 1993, accepting the LAC concept.
China claims Arunachal Pradesh as 'South Tibet' and has increased its assertiveness in recent years.
The 2020 Galwan clash in Eastern Ladakh highlighted the ongoing tensions and changed border dynamics.
- Who
- India and China
- What
- Dispute over the Line of Actual Control (LAC) and China's claims on Arunachal Pradesh.
- When
- Historical tensions since 1914, recent escalations in 2020.
- Where
- Eastern Sector (Arunachal Pradesh), Western Sector (Ladakh), and Middle Sector (Uttarakhand and Himachal Pradesh).
- Why
- Disagreements over territorial boundaries, historical claims, and strategic interests.
- McMahon Line
- Boundary formalized in 1914 during the Simla Conference between British India, Tibet, and China.
- LAC
- Line of Actual Control, first mentioned by Chinese Premier Zhou Enlai in 1959.
- BPTA
- Border Peace and Tranquility Agreement signed in 1993, accepting the LAC concept.
- Arunachal Pradesh
- Region claimed by China as 'South Tibet' or 'Zangnan'.
- Galwan Clash
- 2020 deadly clash in Eastern Ladakh, changing border dynamics.
- Core Interests
- China's term for territories it considers non-negotiable, including Arunachal Pradesh.
- Grey Zone Operations
- China's strategy of incremental territorial changes without outright conflict.
- Tawang
- Disputed region in Arunachal Pradesh claimed by China, protected in 2005 agreement.