A small defence research lab is actively finding solutions on how to efficiently tap solar energy to keep soldiers’ shelters warm during winters in the Ladakh sector. The Indian army is sitting in an eyeball-to-eyeball confrontation with the Chinese and needs warm habitations. The Defence Institute of High Altitude Research in Leh is developing solar thermal warming technology called Solar Thermal Energy Based Technology for Space Heating (Human Habitation) In High Altitude to keep the shelters warm for soldiers.