New Delhi, April 13 -- As Operation Meghdoot completed 42 years on Monday, the Indian Air Force paid tribute to bravehearts who have sacrificed their lives in defending the world's highest battlefield, Siachen in Ladakh.

April 13 is marked as Siachen Day, as Operation Meghdoot was launched on this day in 1984, when the Indian Army and Indian Air Force advanced to the Siachen glacier to secure the heights dominating the Northern Ladakh region.

"On this Siachen Day, IAF salutes the indomitable courage, unwavering commitment and supreme sacrifice of our brave warriors defending the world's highest battlefield. As Operation Meghdoot completes 42 years, we honour the legacy of valour, endurance and operational excellence in the harshest of t...