Irked by this development, in April 1984 India initiated the successful Operation Meghdoot during which it gained control over all of the 70 kilometre (41 mile)-long Siachen Glacier, and all of its tributary glaciers, as well as the three main passes of the Saltoro Ridge immediately west of the glacier—Sia La, Bilafond La, and Gyong La. According to TIME magazine, India gained more than 1000 sqmi of territory as a result of its military operations in Siachen.