evidence: In 2012, Chief of Army Staff of the Indian Army General Bikram Singh said that the Indian Army should stay in the region for strategic advantages, and because a "lot of blood has been shed" by Indian armed personnel for Siachen.[37][38] The present ground positions, relatively stable for over a decade, mean that India maintains control over all of the 76 kilometres (47 mi) Siachen Glacier and all of its tributary glaciers, as well as all the main passes and heights of the Saltoro Ridge[39] immediately west of the glacier, including Sia La, Bilafond La, Gyong La, Yarma La (6,100m), and Chulung La (5,800m).[40] Pakistan controls the glacial valleys immediately west of the Saltoro Ridge.[41][42] According to TIME magazine, India gained over 1,000 square miles (3,000 km2) in territory because of its 1980s military operations in Siachen.[43] India has categorically stated that India will not pull its army from Siachen until the 110-km long AGPL is first authenticated, delineated and then demarcated.[44][45]