A fresh blanket of snow drapes Zoji La, a mountain pass that serves as the bridge between the Kashmir Valley and Ladakh, around 102 km north of Srinagar. This uninhabited expanse—which marks the end of the conifer-clad mountains and is an entry point to Ladakh—is normally shrouded in silence. These days, however, the persistent hum of mighty excavators and American augur machines reverberates across the mountains. A team of workers and engineers are working very hard to carve a tunnel through the formidable terrain.