 Chuni Lal and other soldiers of the unit such as Naib Subedar (later Sub Maj and Hony Capt) Bana Singh volunteered to join this force.The Pakistani intrusion had taken place at a height of 6500 metres at the highest peak in the Siachen Glacier area.From this feature the Pakistanis could snipe at Indian army positions since the height gave them a clear view of the entire Saltoro range and Siachen glacier.