In the army, they knew him as â€˜Bullâ€™ Kumar, awed as his mates were by the strength of his thick, muscular neck. Col Narendra Kumar earned this sobriquet at the National Defence Academy, then in Dehradun, during the first boxing match he fought. His rival was a senior cadet, S.F. Rodrigues, who went on to become the chief of army staff. Col Kumar lost the bout, but the â€˜Bullâ€™ epithet stuck. Since then, Col Kumar has done everything in his long military career to justify the name his colleagues gave him. Like the bull, he loves a challenge, sniffs it even before others can see it, and goes at it in a single-minded pursuit, indifferent to consequences, full tilt, tail up. It was these qualities of his that ensured the Siachen glacier became an integral part of India. The heroic story of Col Kumar dates to 1978, when he took a major expedition to the inhospitable glacier. This was six years before India launched Operation Meghdoot to thwart Pakistanâ€™s designs on the Siachen glacier. No doubt, he knew the mountains well, commissioned as he had been into the Kumaon Regiment and consequently having spent the better part of his military career surrounded by troops born and bred in the rugged hills of Kumaon. Yet glaciers arenâ€™t just stunningly beautiful mountainscape: they can numb, daze and kill you. Col Kumar, posted as the commandant of the armyâ€™s High Altitude Warfare School (HAWS) in Gulmarg then, knew he was heading into uncharted territory. â€œThis was the first major expedition into the unknown,â€ he says, reminiscing about it in his flat in Delhi. â€œWe had some reports that the Americans were showing Siachen as part of Pakistan in their adventure maps.â€ What Kumar and his team planned was to reach the glacierâ€™s snout, its lowest point, where the ice melts into water, and then trek up the 77 km of treacherous crevasses, mountains, passes and snow-covered peaks to reach the source. The colonel knew the stakes were high, that this mission could decide the future of Indiaâ€™s strategic outreach and establish a critical wedge between Pakistan-Occupied Kashmir and the swathe of Indian territory the Chinese had occupied in the aftermath of 1962. â€œOur equipment wasnâ€™t the best, we didnâ€™t have any maps,â€ he recalls. â€œWe were going in blind and all we had was a rough idea of the peaks which had been named by the British decades ago.â€ Bound to each other by thick ropes, trekking across the harsh terrain for weeks on end, Col Kumar became the first Indian to climb the Sia Kangri peak, which offers a majestic view of the Siachen glacier. But there was also a surprise awaiting the teamâ€”a Japanese mountain expedition facilitated by the Pakistan military had a presence there. After a â€œsit-repâ€ (situational report) was dispatched to the army headquarters, the team went from peak to peak, staying ahead of snow avalanches to chart the area. Bull Kumar led other expeditions till 1984, losing four toes to frostbite. His sacrifice wasnâ€™t to go waste. Cut to 1984: intelligence information convinced the army headquarters that the Pakistanis were planning to militarily occupy Siachen and the heights of the nearby Saltoro ridge. There was evidence: in the autumn of 1983, a team from the Indian armyâ€™s elite Ladakh Scouts had sighted a Pakistani special forces unit from the ssg in the Siachen area. This prompted the area army headquarters to immediately draw up plans for a major operation in the summer of 1984. The fourth battalion of the Kumaon Regiment was assembled and equipped for Operation Meghdoot, which had as its bulwark Kumarâ€™s maps, films and his knowledge of the area. On April 13, 1984, Operation Meghdoot finally got under way. Air force choppers, their engines clattering in protest at being pushed to the limits of technological possibility at incredible heights, began to drop soldiers at Bilafond La which is today part of the Siachen Base Camp. For the first time in history, India had stamped its claim on the Siachen glacier. The sturdy Kumaonis then trekked up the glacier to secure the two major passesâ€”the Sia La and Gyong Laâ€”even as the Pakistanis were scrambling their troops into the region. The Kumaonis moved up the Saltoro ridge, overlooking the approach from Pakistan-occupied Kashmir, and Sia Kangri to establish posts that would give India the command of the glacier. With hands veritably frozen around their 7.62 mm rifles, Indian troops battled the elements to establish a military foothold in what would become the worldâ€™s highest battlefield. â€œAt times, you face impossible choices on the glacier. We always moved in pairs, bound to each other by rope. At one point, my buddy fell into a crevasse. For 45 minutes, I grappled with the idea of dying with him or cutting him loose and saving my life or to hang with him till the cold killed us both. I am glad that I never cut the rope.â€ In those 45 minutes, the buddy crawled up, the duo living to continue their foray from peak to peak. To the west of the glacier were hostile Pakistani troops; on the east and to the north stood the Chinese. Had Col Kumar been given a clearance, heâ€™d perhaps have climbed the K2 peak in the Karakoram ranges as well. But to reach K2, heâ€™d have had to traverse the Shaksgam valley, which the Pakistanis had illegally ceded to China. So, India halted its advance on reaching the northernmost tip of the Siachen glacier, settling in on its frozen waste. As Indian troops established more posts, a key base on the glacier was named Kumar Base: perhaps the only living Indian army officer to enjoy this singular honour. Indiaâ€™s claim to Siachen was confirmed. But the â€œrefrigerated combatâ€ against the elements and Pakistan had only just begun.