On April 7, 2012, a catastrophic avalanche struck the Pakistani Army's 6 Northern Light Infantry battalion headquarters in the Gayari Sector. The disaster buried the entire base under 80 feet of snow and rock, resulting in the deaths of 129 soldiers and 11 civilians. This tragedy renewed global and domestic calls for the demilitarization of the Siachen glacier, highlighting that the environment is often a more deadly enemy to the troops than the opposing army.

The Karachi Agreement of 1949 was signed by military representatives of India and Pakistan under the supervision of the United Nations. It established the original Ceasefire Line (CFL) following the 1947-48 war. The line was drawn up to Point NJ9842, and because the area beyond was considered inaccessible and uninhabitable, the negotiators didn't feel the need to demarcate it further, merely noting it went 'north to the glaciers.' This lack of precision is the legal origin of the Siachen dispute.

Ironically, the name 'Siachen' is derived from the Balti language words 'Sia' (a species of wild rose found in the region) and 'Chen' (referring to an abundance of something). Thus, Siachen translates to 'Place of Wild Roses.' This name likely refers to the flora found in the lower valleys before the glacier begins, standing in stark contrast to the desolate, ice-covered landscape that has been the site of intense military conflict since 1984.

The 'Quaid Post' was a highly strategic Pakistani position located at 21,153 feet on the Saltoro Ridge. In June 1987, Indian troops led by Naib Subedar Bana Singh successfully captured the post in a daring assault. It was subsequently renamed 'Bana Post' in his honor, and he was awarded the Param Vir Chakra. This location remains the highest occupied point on the Saltoro Ridge, providing a panoramic view of the entire region and making it virtually impossible to recapture.

Siachen is globally known as 'The Highest Battlefield in the World' because combat has taken place at altitudes exceeding 6,000 meters (20,000 feet). It is also called 'The Third Pole' due to its massive ice reserves outside the polar regions. Soldiers on both sides refer to it as 'The Frozen Hell' because more casualties have been caused by the extreme climate, avalanches, and frostbite than by actual enemy fire. Temperatures can drop to -50 degrees Celsius, making survival a constant struggle.

Pakistan had planned 'Operation Ababeel' to occupy the same strategic passes on the Saltoro Ridge in 1984. Intelligence reports suggests that Pakistan had ordered specialized high-altitude gear from European suppliers, which alerted India to their intentions. India launched Operation Meghdoot roughly 48 to 72 hours before Pakistan could initiate its own move, securing the heights first and forcing Pakistan to establish its positions at lower altitudes on the western slopes of the ridge.

While the conflict is named after the Siachen Glacier, the actual military positions are held on the Saltoro Ridge, which serves as a natural wall to the west of the glacier. Following Operation Meghdoot, India occupied the dominant heights of the ridge, including the three main passes: Sia La, Bilafond La, and Gyong La. This provides India with a tactical advantage of height, though it requires massive logistical support to maintain troops at altitudes reaching up to 22,000 feet.

The root of the Siachen conflict lies in the vague wording of the 1949 Karachi Agreement and the 1972 Simla Agreement. The LoC was demarcated and mutually accepted only up to Point NJ9842. Beyond this point, the agreements stated the line would continue 'thence north to the glaciers,' without specifying exactly where. This ambiguity led both countries to claim the vast glacier based on different interpretations of the terrain and historical maps, resulting in the eventual military occupation.

The Siachen Glacier is situated in the eastern Karakoram range in the Himalayas, just east of the Line of Control between India and Pakistan. It is the longest glacier in the Karakoram and the second-longest in the world's non-polar areas. Its geographic location makes it a strategic buffer between the Pakistani-controlled regions of Gilgit-Baltistan and the Indian-administered Ladakh, also sitting close to the Chinese border at the Shaksgam Valley.

Operation Meghdoot was launched on the morning of April 13, 1984. It was a preemptive military strike by the Indian Army to occupy the strategic heights of the Saltoro Ridge, which overlooks the Siachen Glacier. This date is considered the beginning of the Siachen conflict, the longest-running high-altitude struggle in modern military history. India chose this specific date to coincide with the Baisakhi festival, assuming the Pakistani military would be less expectant of a major operation on a holiday.