Ten army personnel, including an officer, were buried on Wednesday after they were hit by an avalanche at a high- altitude post on the glacier in Jammu and Kashmir.
"Decision about (deployment of troops in) Siachen is based on the security of the nation. If somebody wants to go there and they have to understand its importance, why we are maintaining it (security presence) in spite of hostile conditions...I think you will understand if you go to that place," he told reporters on the sidelines of an international maritime conference here.
"You can yourself understand that the terrain is such that we lost thousands of soldiers to retain control over it" though the loss of human lives on Siachen had come down in recent years due to improved facilities, Defence Minister said.
The glaciated area presents temperatures ranging from a minimum of minus 42 degrees Celsius in the night to maximum of minus 25 degrees C during the day.