* Logistical constraints for China: While China has improved road and rail networks (like the Lhasa-Shigatse railway line) to the northern end of the valley, the narrow, rugged terrain at the southern end severely limits the large-scale, rapid maneuver of heavy military formations, making it a logistical bottleneck for any major offensive.

History

There is telltale evidence of the Chumbi Valley being used as a trade route between Tibet and India in the first millennium CE. A lotsawa named Yontendrak (Yon tan grags, b. 973)

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