What Is the Line of Control? The De Facto Border That Divides Kashmir
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What Is the Line of Control? The De Facto Border That Divides Kashmir

The Line of Control is the heavily militarised de facto border between Indian-administered and Pakistan-administered Kashmir. Both countries claim the entire territory.

Geography Worlds
March 26, 2026
6 min read

The Line of Control is a 740-kilometre military demarcation that runs through the disputed territory of Kashmir, in the northwestern Indian subcontinent. On one side of the line, the territory of Jammu and Kashmir, Ladakh, and parts of the surrounding region are administered by India. On the other side, the territory of Azad Kashmir and Gilgit-Baltistan is administered by Pakistan. Both countries claim the entire former princely state of Jammu and Kashmir as their own; neither recognises the Line of Control as an international border. The line was established by the 1972 Simla Agreement that ended the 1971 Indo-Pakistan War and runs broadly along the cease-fire positions of the 1949 Karachi Agreement that had ended an earlier war. It has been heavily militarised by both sides for most of its existence, and exchanges of artillery fire across it have been a regular feature of South Asian politics for more than 75 years.

How Kashmir Got Divided

The Princely State of Jammu and Kashmir was a Muslim-majority state ruled by a Hindu maharaja, Hari Singh, at the time of the British withdrawal from India in August 1947. The partition plan required each princely state to accede to either India or Pakistan; Hari Singh hesitated, hoping to remain independent or to extract favourable terms. In October 1947, Pakistani-backed tribal forces invaded the state from the west. Hari Singh, unable to defend the kingdom, signed the Instrument of Accession to India on 26 October 1947 in exchange for Indian military intervention. Indian forces flew into Srinagar the next day and over the following months pushed the invading forces back to roughly the line that has since become the Line of Control.

The first Indo-Pakistani War over Kashmir ran from October 1947 to January 1949. A UN-brokered cease-fire established the Karachi Line, the predecessor of the modern Line of Control. The UN Security Council passed resolutions calling for a plebiscite to determine the state's final status; the plebiscite was never held, mainly because India and Pakistan could not agree on the conditions for it. Subsequent wars in 1965 and 1971 modified the line slightly but did not produce a final political settlement.

The Line on the Ground

The line runs from the southwest, in the foothills near the city of Jammu, north and east through the western Himalayan ranges to the Siachen Glacier area in the high Karakoram. It does not follow any natural geographic feature consistently — it winds across mountain ridges, river valleys, and forest tracks, marked by chains of military bunkers, observation posts, and barbed wire. At lower elevations, the two sides are sometimes only a few hundred metres apart; at higher elevations the line crosses ridges and passes at altitudes over 5,000 metres. The Indian side has built a substantial border fence along most of the line — about 550 kilometres completed by the late 2000s — but the fence is broken in places by terrain and weather. Both sides have deployed hundreds of thousands of troops to the surrounding territory.

Siachen

The northernmost section of the Line of Control runs onto the Siachen Glacier in the eastern Karakoram. Siachen is at extreme altitude — between 5,500 and 6,500 metres along the deployment positions — and is among the most physically hostile environments in which any sustained military presence has ever been maintained. Temperatures routinely drop below -50°C in winter. Helicopters operate at the limits of their performance. The Indian Army has maintained outposts on the glacier since the 1984 Operation Meghdoot, when Indian forces preempted what they believed would be a Pakistani occupation. Pakistani forces hold positions on the glacier's western edge. Casualties on both sides are dominated by altitude sickness, avalanches, hypothermia, and other environmental causes rather than combat. The 2012 Gayari avalanche, which killed 140 Pakistani soldiers, was the worst single incident of the Siachen confrontation. Neither side has been willing to demilitarise the glacier despite intermittent diplomatic discussions.

Article 370

The Indian-administered part of Kashmir held a special constitutional status from 1949 to 2019 under Article 370 of the Indian Constitution, which gave the state of Jammu and Kashmir its own constitution, autonomy over most matters except defence, foreign affairs, and communications, and restrictions on non-Kashmiris purchasing land in the state. In August 2019, the Modi government revoked Article 370 and reorganised the former state into two Union Territories (Jammu and Kashmir, and Ladakh) administered directly from New Delhi. The reorganisation was accompanied by a months-long internet blackout, mass detentions of local political leaders, and a substantial increase in the security presence. The Pakistani government condemned the move as unilateral; the international response was muted. Indian politics around Kashmir have continued under the new framework, with elections to the reduced Jammu and Kashmir legislative assembly held in 2024 after several years of direct rule.

The 2019 Pulwama and Balakot Crisis

The Line of Control has been the site of several major Indo-Pakistani military escalations. The most recent significant one was in February 2019, when a suicide bombing in the Indian-administered town of Pulwama killed 40 Indian paramilitary personnel. The bombing was claimed by Jaish-e-Mohammed, a Pakistan-based militant group. India responded by sending fighter aircraft across the Line of Control to strike a target in Balakot, in Pakistan proper. Pakistan responded with aerial action of its own, in the course of which an Indian fighter pilot, Wing Commander Abhinandan Varthaman, was shot down and captured by Pakistani forces. He was returned within days, and the crisis de-escalated. The episode was the first acknowledged use of military aircraft across the international border between India and Pakistan since 1971, and revived global attention to the South Asian conflict's nuclear-armed character.

The Civilian Population

Several million people live in the Kashmir region on both sides of the Line of Control, in conditions shaped by the perpetual military presence. The economic effects are substantial — tourism has been intermittent for decades, agricultural markets are constrained by border closures, and large fractions of working-age men have moved away. Cross-border family connections are common but cross-border travel is heavily restricted; the 2005 inauguration of a bus service between Srinagar (Indian side) and Muzaffarabad (Pakistani side) was the first regular civilian crossing in decades and remains limited to vetted travellers. The 2005 Kashmir earthquake — magnitude 7.6, killing approximately 85,000 people, mostly on the Pakistani side — produced the first coordinated humanitarian cross-border response in the region's history.

China and Aksai Chin

The Line of Control is not the only contested border in the Kashmir region. To the east of the Indian-administered Ladakh, the disputed territory of Aksai Chin is administered by China but claimed by India. The 1962 Sino-Indian War, fought primarily over this area, ended with China holding the territory it had occupied; the boundary established at the end of the war became the Line of Actual Control between the two countries, distinct from the Pakistan-India Line of Control. The 2020 Galwan Valley clash between Indian and Chinese troops along the LAC produced over 20 Indian and an undisclosed number of Chinese deaths, the deadliest such incident in over 40 years, and led to a substantial Indian military buildup along the China-India frontier that continues today.

The Cease-fire of 2021

In February 2021, the Indian and Pakistani directors-general of military operations announced a renewed cease-fire along the Line of Control. The cease-fire substantially reduced artillery and small-arms exchanges across the line, which had been a major source of casualties among civilians living near it. The cease-fire has held imperfectly through 2025 — there have been violations but no large-scale breakdown — and represents the longest sustained reduction of cross-border fire in several decades. Whether it represents a step toward broader detente or simply a tactical pause depends on the trajectory of Indo-Pakistani relations, which has been generally cold since 2016 and shows no clear sign of warming.

What the Line Means

The Line of Control is in some ways a textbook frozen conflict — a militarised line that neither side has the capacity to change unilaterally and neither side has the political will to formalise. The Indian position has consistently been that the entire former princely state, including Pakistan-administered Kashmir, is part of India and that the line should eventually be converted into an international border with Pakistan ceding its claims. The Pakistani position has consistently been that the original UN resolution promising a plebiscite remains binding and that the Kashmiri population should determine its own future. Neither position is going to produce the agreement of the other side. The line, in the meantime, continues to function as the working boundary, militarised, occasionally violent, and embedded in the strategic landscape of one of the world's most populous regions.