evidence: The Indian claim on the Siachen Glacier is based on the widely accepted watershed principle of demarcation, and runs for almost 110 kms along the Saltoro Ridge from slightly west of NJ 9842 and ends at the Indira Col, a pass that is dominated by the Sia Kangri Mastiff at the tri-junction of India-Pakistan and Shaksgam (ceded to China by Pakistan, but still claimed by India). While India claimed that the LOC thereafter (now called the Actual Ground Position Line or AGPL) ought to follow this line, Pakistan claimed that the LOC should continue as the crow flies in a north-easterly direction by joining Pt NJ 9842 with the Karakoram pass. [...] Control of the glacier for India became even more critical considering that just east of the glacier lay the vast high altitude desert plains that the Indian Army calls Sub-Sector North (SSN). This is the area that saw much action in the 1962 India-China War and includes the Indian Advance Landing Ground (ALG) of Daulat Beg Oldie, and contested areas of the Depsang Plains that have seen numerous face-offs in the recent past between Indian and Chinese border patrols. Strategically, should Pakistan have taken control of the Siachen Glacier, SSN would have been sandwiched between Pakistani and Chinese forces, a fact that was well appreciated by the Indian Army leadership. The entire Siachen Glacier, with all major passes, is currently under the administration of India since 1984. Pakistan controls the region west of Saltoro Ridge, with posts located almost 3,000 ft below over 50 Indian posts.