Why was mountain warfare difficult during the Kargil War?

Mountain warfare during the Kargil War was exceptionally difficult due to the extreme environmental and geographical challenges of the region. The conflict took place in the rugged Himalayan terrain of the Kargil district at high elevations reaching approximately 16,500 feet (5,000 meters) above sea level.12

The primary factors contributing to the difficulty of the fighting included:

• Extreme Altitude and Climate: Soldiers had to operate in a cold, dry, and high-altitude environment where the terrain was rocky and largely barren. The physical strain of scaling these mountains while carrying equipment under such conditions was immense.23
• Strategic Disadvantage: Pakistani forces had covertly occupied high-altitude positions that overlooked critical infrastructure, such as National Highway 1A, which served as India’s primary supply route to Ladakh.2
• Tactical Challenges: Indian troops were required to conduct sustained, uphill assaults against well-entrenched positions on steep, mountainous peaks like Tiger Hill and Tololing. These engagements often involved fighting under heavy fire, requiring significant valor and physical endurance from the soldiers involved.2