The Siachen Glacier is controlled by the Indian Army in Mission : Impossible - Fallout .
The team deduces that Lane and Walker plan to detonate the two remaining nuclear weapons over the Siachen Glacier ( Controlled by Indian Army ) at Nubra Valley , contaminating the water supply of India , Pakistan , and China ; with a third of its population affected , the world will descend into anarchy from which Lane and Walker hope a new world order will emerge .
Mission-COLON- Impossible – Fallout