India-Pakistan conflict and vague demarcation of LOC In the context of the wider
India Pakistan wars and conflicts, the Siachen Glacier became a bone of contention following a vague demarcation of territories in the
Karachi Agreement of July 1949 which did not exactly specify who had authority over the Siachen Glacier area. India and Pakistan had demarcated the borders of the disputed area in Ladakh by demarcating the
Line of Actual Control (LOC) which ended at the Point
NJ9842 and the area further north of this which lies in Siachen was not demarcated. Indian interpretation was that Pakistan territory extended only to about the
Saltoro Ridge, where the territorial line's route after the last demarcated Point NJ9842 was "thence north to the glaciers." Pakistan interpretation was that their territory continued northeast from Point NJ9842 to the
Karakoram Pass. As a result, both nations claimed the Siachen Glacier and the alpine heights around the Siachen Glacier.
1970s-80s: Pakistani permissions to foreigner's mountaineering expeditions in Siachen In the 1970s and early 1980s, Pakistan permitted several mountaineering expeditions to climb the peaks in the Siachen region from the Pakistani side, perhaps in an attempt to reinforce their claim on the area as these expeditions received permits obtained from the Government of Pakistan and in many cases a liaison officer from the Pakistan Army accompanied the teams. Notably, when Pakistan gave permission to a Japanese expedition to scale an important peak (
Rimo I) in 1984, it further fueled the suspicion of the Indian Government of Pakistani attempts to legitimize their claim. The peak, located east of the Siachen Glacier, also overlooks the northwestern areas of the
Aksai Chin, an area which is disputed between
India and China. The Indian military believed that such an expedition could further link up the northeastern side to the southwestern side of the
Karakoram Range and eventually provide a strategic, if not tactical, advantage to Pakistan.
1978-early 1980s: Indian mountaineering expeditions to Siachen In 1978, the Indian Army also allowed mountaineering expeditions to the glacier, approaching from its side. The first one launched in 1978 by Colonel
Narinder Kumar of the
Indian Army, who led an expedition to
Teram Kangri, along with medical officer Captain AVS Gupta and S.C Vahie. The
Indian Air Force provided valuable logistics support to this expedition and supply of fresh rations. The first air landing on the glacier was carried out on 6 October 1978 when two casualties were evacuated from the Advance Base Camp in a
Chetak helicopter by Squadron Leader Monga and Flying Officer Manmohan Bahadur. In 1980, the Commander of
3 Artillery Brigade, Brigadier K N Thadani VSM, led a 68-member
Indian Army military expedition (consisting of 2 Majors, 5 Captains, 1 Second Lieutenant and 59 Other Ranks of the army) to Apsarasas-1 a part of the
Apsarasas Kangri sub-range in the Siachen Glacier, Ladakh. On 18 September 1980, 16 members of the Indian Army expedition successfully scaled the summit. Then in 1984, Lieutenant Colonel Prem Chand, of the
Dogra Regiment led a 54-member
Indian Army military expedition (consisting of Officers and Other Ranks of the army) to K12 on the
Saltoro Range in the Siachen Glacier, Ladakh. On 17 October 1984, members of the Indian Army expedition successfully summited the peak. == Pakistani stategy ==