Why Does China Claim Arunachal Pradesh? The Line Drawn in 1914

In October 2026, India's border police chief said Indian and Chinese troops are still facing off at several points in Arunachal Pradesh. China calls the whole state "Zangnan", South Tibet. Why? The answer goes back to a red line drawn at Simla in 1914, a treaty China never signed, and a monastery town called Tawang. From the 1962 war and Sumdorong Chu to the Yangtse clash, renamed places, stapled visas and the road race on both sides, here is the whole story on real terrain. Chapters: 0:00 Cold open 1:07 Simla, 1914 2:21 The monastery at the centre 3:47 1962 5:09 Sumdorong Chu 6:15 Clubs on a ridge 7:08 The war of names 8:32 Roads to the edge 9:05 Ink and ridges Sources: • MEA briefing, 23 Oct 2026 (patrol patterns); ITBP DG remarks on face-offs: Organiser; APN Live • Viral "face-off" videos are old footage: Factly (Oct 2026) • Simla Convention 1913–14 (initialled 27 Apr, signed 3 Jul 1914): Wikipedia; IDSA, "The McMahon Line: A hundred years on" • Zhou Enlai's 1959 note on the line of actual control: Wikipedia (Simla Convention) • Tawang Monastery (c. 1680): Wikipedia · Maj. R. Khathing in Tawang, 1951: IDSA; The Print • Dalai Lama's escape, March 1959: Wikipedia • 1962 war and ceasefire (21 Nov 1962): Wikipedia (Sino-Indian War) • Sumdorong Chu 1986–87, Operation Falcon: Wikipedia • Yangtse clash, 9 Dec 2022: Wikipedia • Renaming lists (2017–2026): SCMP; Scroll; Business Today · Asian Games 2023 visa row: Reuters; The Hindu • Terrain: Copernicus DEM GLO-90 (© DLR e.V. 2010–2014 and © Airbus Defence and Space GmbH 2014–2018, provided under COPERNICUS by the European Union and ESA) Maps: Natural Earth (India point-of-view boundaries). Music: YouTube Audio Library. Sound effects: BigSoundBank (CC0). Narration: AI voice. Some scenes are illustrations. #Geopolitics #ArunachalPradesh #IndiaChina #McMahonLine #Tawang #LAC