Major Indo-Pak Wars & Conflicts

May 2025|đź”´Needs Update|15 min read|3 entries

Key Takeaway

The history of independent India and Pakistan has been significantly shaped by a series of military conflicts, primarily centered around the disputed region of Jammu and Kashmir.

Last verified: 12 Feb 2026·Source: www.pscarivukal.com·Next review: May 2026

Major Indo-Pak Wars & Conflicts

The history of independent India and Pakistan has been significantly shaped by a series of military conflicts, primarily centered around the disputed region of Jammu and Kashmir.

Understanding these wars, their causes, key events, and outcomes is crucial for aspirants of Kerala PSC examination, as they highlight geopolitical dynamics, military strategies, and diplomatic efforts in the subcontinent.

Major Indo-Pak Wars

First Kashmir War (1947–1948)

This was thefirst major armed conflict between India and Pakistanafter the partition of British India.

The lapse of British paramountcy granted princely states the prerogative to accede to India or Pakistan based on geographical contiguity and the people's will.

The Princely State of Jammu and Kashmir

Hari Singh, theMaharaja of Jammu and Kashmir, a Muslim-majority state with a Hindu ruler, initially chose to remain independent.

However, inOctober 1947, Pakistan, seeking to annex Kashmir, orchestrated a covert invasion.

Pashtun tribal militias (lashkar), unofficially supported and armed by elements within the Pakistan Army, crossed the border into Kashmir.

Faced with the rapid advance of these raiders towards Srinagar, the Maharaja appealed to India for military assistance.

In exchange for this crucial aid, Hari Singh signed theInstrument of Accessionto India onOctober 26, 1947, legally integrating Jammu and Kashmir into the Indian Union.

Operation Gulmarg

This was Pakistan’s covert plan to seize Kashmir through a proxy invasion by tribal militias.

Over5,000 Pashtun tribesmen, organized and armed by the Pakistani military, were sent into Kashmir on22 October 1947.

Their primary objective wasto swiftlycaptureSrinagar, the state's summer capital, thereby compelling its accession to Pakistan.

However, the operation devolved into looting and atrocities in places like Baramulla, which delayed their advance and caused panic among the civilian population.

This unexpected delay proved critical, providing India with the window to mount a military response.

Operation Rescue

India's immediate military intervention to protect Kashmir was codenamed Operation Rescue.

On27 October 1947, following the formalization of the Instrument of Accession, the Indian Army initiated an emergencyairlift of troops from PalamAir Force Station in Delhito Srinagar.

Using Dakota aircraft, the1st Battalion of the Sikh Regimentwas among the first to land and secure the vital Srinagar airfield, effectively halting the tribal advance just miles from the city.

It marked the first major use of air power and logistics in India’s military history and effectively saved the valley from falling to the invaders.

Outcome of the First Kashmir War

Fighting continued through 1948, with both sides gaining and losing ground.

Eventually, India approached the United Nations for mediation. AUN-brokered ceasefirecame into effect on1 January 1949,freezing the conflict.

Thisceasefiredemarcated a boundary known as theCeasefire Line (CFL),which was later renamed theLine of Control (LoC)following theShimla Agreement of 1972.

As a result of the war, Pakistan gained control of approximatelyone-third of the former princely state, an area now referred to asPakistan-occupied Kashmir (PoK) or Azad Kashmir, while India retained control of the larger portion, including the Kashmir Valley, Jammu, and Ladakh.

Second Kashmir War (1965)

The Second Indo-Pak War was triggered by Pakistan’s renewed attempt to wrest control of Jammu and Kashmir from India.

Believing that Kashmiris were ready to rebel against Indian rule, Pakistan launched a covert operation to infiltrate forces into the region.

This war, unlike the first, involved large-scale tank battles, infantry assaults, and air force action on both sides.

It escalated into a full-fledged war across the international border, involving Punjab and Rajasthan.

It lasted fromAugust to September 1965and was fought both in Kashmir and on the western front, particularly around Lahore and Sialkot.

Operation GibraltarThis was asecret Pakistani planto send armed infiltrators into Indian-administered Kashmir to incite insurgency against Indian control.Launched in earlyAugust 1965, the plan failed badly due to poor local support and strong Indian countermeasures.The infiltrators were detected, and their presence triggered Indian military action to flush them out.Rather than achieving its goal, Operation Gibraltar exposed Pakistan’s intentions and served as a catalyst for a larger war.Operation Grand SlamFollowing the failure of Operation Gibraltar,Pakistanlaunched Operation Grand Slam on1 September 1965, aiming tocapturethe strategically vital town ofAkhnoorin Jammu to cut off Kashmir from Indian supply lines.However, the operation faltered due to a last-minute change in command and stiff Indian resistance.This aggressive move expanded the conflict, prompting India to open a major front in Punjab, advancing towards Lahore and Sialkot.Operation Riddle (Indian military counter-offensive)India’s military response included a series of counterattacks along the Punjab border and into the Lahore sector.Indian forces crossed the international border on6 September 1965,marking a significant escalation.The Indian Army captured several key positions, and both sides suffered heavy losses in what became one of the largest tank battles since World War II.India’s strategy forced Pakistan to divert forces from Kashmir, thereby relieving pressure on that front.Outcome: Stalemate and Tashkent AgreementAfter weeks of intense fighting and mounting international pressure, especially from the Soviet Union and the United States, a UN-mandated ceasefire was declared on23 September 1965.The Tashkent Agreement, brokered by the Soviet Union inJanuary 1966, required both sides to withdraw to pre-war positions and restore normal diplomatic relations.Though militarily inconclusive, the war exposed Pakistan’s miscalculations and India’s resolve, while Kashmir remained a contested issue.

Tashkent Agreement (1966)It was apeace accordsigned on10 January 1966betweenIndia and Pakistan, under the mediation of the Soviet Union, following the Second Indo-Pak War of 1965.The agreement was signed in Tashkent (then in the Soviet Union, now in Uzbekistan) by Indian Prime MinisterLal Bahadur Shastriand Pakistani President Field MarshalAyub Khan, with Soviet PremierAlexei Kosyginacting asmediator.Under the terms of the agreement:Both sides agreed to withdraw to pre-war positions as of5 August 1965, effectively restoring the status quo.Both nations committed to non-interference in each other’s internal affairs and to resolving future disputes through peaceful means and dialogue.Diplomatic relations were to be normalized and economic ties restored.Though the agreement helped avert further escalation, it was criticized in both countries.In India, some saw it as a missed opportunity for a stronger stance, while in Pakistan, it was viewed as a military failure.Tragically, Indian PMLal Bahadur Shastri died in Tashkent of a heart attack just hours after the agreement was signed, adding to its historical poignancy and mystery.

Bangladesh Liberation War / Indo-Pak War (1971)

The 1971 war was a watershed moment in South Asian history, fundamentally altering the geopolitical landscape.

Unlike the previous conflicts primarily focused on Kashmir, it was rooted in political and ethnic tensions betweenWest Pakistan(now Pakistan) andEast Pakistan(now Bangladesh).

The denial of political power to theEast Pakistani party (Awami League), the party that won a landslide victory in the1970 Pakistani general electionsin East Pakistan (now Bangladesh), ignited widespread protests.

The predominantly Bengali population of East Pakistan felt marginalized and disenfranchised by the West Pakistani-dominated government.

The brutal crackdown by the Pakistani military underOperation Searchlight inMarch 1971led to widespread atrocities, genocide, and a massive refugee crisis, with over 10 million Bengalis seeking refuge in India.

India, underPrime Minister Indira Gandhi,initially provided moral and material support to theMukti Bahini,the Bengali resistance movement fighting for the liberation of East Pakistan.

As the refugee crisis placed an unbearable strain on India's resources and stability, and with growing international condemnation of Pakistan's actions, India eventually decided to intervene militarily and launched a full-scale military campaign inDecember 1971.

Operation Jackpot

Operation Jackpot was a codename for aseries of daring guerrilla and naval sabotage missionsconducted by theMukti Bahini (Bangladeshi freedom fighters)with support from theIndian Navyduring the 1971 Bangladesh Liberation War.

One of the most significant actions under this operation occurred onAugust 15, 1971,when Mukti Bahini commandos, trained by Indian forces, launched coordinated underwater demolition attacks on Pakistani naval and merchant ships docked in ports like Chittagong, Mongla, Chandpur, and Narayanganj.

Using limpet mines and basic diving gear, they successfully sank or damaged several vessels, disrupting Pakistani supply lines and crippling riverine logistics.

This operation showcased the effectiveness of joint unconventional warfare and greatly boosted the morale of the Bangladeshi resistance movement.

Operation Cactus Lily

This was the codename for India’s comprehensive military strategy encompassing both the Eastern and Western fronts.

In the East, the main strategy focused on a rapid, multi-pronged offensive by the Indian Army, supported by the Mukti Bahini, to isolate and neutralize the Pakistani forces.

Indian troops, alongside Mukti Bahini guerrillas, launched simultaneous offensives from the north, west, and east toward Dhaka.

On the Western Front, India adopted a more defensive posture but launched localized attacks to fix Pakistani troops in place, preventing reinforcements to the East.

The Eastern strategy was highly successful and led to the quick fall of Dhaka in just13 days.

Operation Trident

This wasIndia’s first major offensive naval operation, targeting the heavily guarded Karachi harbor, Pakistan’s primary naval base.

On the night of4 December 1971, Indian Navy missile boats from the Western Naval Command -INS Nipat, INS Nirghat, and INS Veer- struck Karachi with Styx missiles.

They sank three Pakistani ships (including the destroyer PNS Khaibar), set Karachi’s oil tanks ablaze, and returned safely.

This audacious raid, the first use of anti-ship missiles in the region

This audacious raid, thefirst use of anti-ship missilesin the region, crippled Pakistan's naval capabilities, severely damaged its logistics, and had a significant psychological impact.

To commemorate this victory,December 4this now celebrated asNavy Day in India.

Operation Python

Following the success of Operation Trident, the Indian Navy launched asecond strike on Karachiharbor on the night ofDecember 8-9, 1971, codenamedOperation Python.

This raid caused further destruction to fuel depots and ships in the harbor.

The combined effect of Trident and Python forced the Pakistan Navy to retreat and remain largely inactive for the rest of the war.

These operations also choked off Pakistan's maritime supply lines, contributing to their strategic isolation.

Meghna Heli Bridge Operation

One of the most innovative operations in the Eastern campaign, this maneuver was led byLt. Gen. Sagat Singh.

TheMeghna Riverposed a formidable natural barrier between Indian forces and Dhaka.

Instead of waiting to capture bridges (which were heavily defended or destroyed), the Indian Army usedMi-4 helicoptersto airlift troops across the river directly into enemy-held territory.

This 'air bridge' allowed Indian forces to bypass Pakistani defenses, maintain momentum, and push toward Dhaka unimpeded.

It is considered a textbook example of bold airborne mobility and significantly hastened the war’s end.

Outcome: Decisive Indian victory & creation of Bangladesh

The 1971 Indo-Pak War concluded with a decisive and swift victory for India and the liberation of East Pakistan, leading to thecreationof the independent nation ofBangladesh.

Over 93,000 Pakistani soldiers surrendered to the joint Indian and Mukti Bahini forces, marking the largest military surrender since World War II.

This war fundamentally altered the balance of power in South Asia and remains a significant historical event.

Kargil War (1999)

The Kargil War of 1999 was a significant armed conflict between India and Pakistan in the Kargil district of Jammu and Kashmir. It was a60-dayarmed conflict between India and Pakistan that took place fromMay to July 1999.

In thesummer of 1999,Pakistan Army personnel, disguised as Kashmiri militants, infiltrated across the Line of Control (LoC) and occupied strategic mountain peaks in the Kargil district of Jammu and Kashmir that had been vacated by Indian troops during the winter.

India's response was a two-pronged military operation encompassing both ground and air power to evict the intruders.

Operation Vijay (Ground Offensive)

Operation Vijaywas the codename for theIndian Army's ground offensive to recapture the territories occupied by Pakistani intruders in the Kargil sector.

The primary goal was to restore the status quo ante by pushing back the infiltrators to their side of the Line of Control.

Facing challenging high-altitude terrain, intense infantry battles, supported by artillery, led to the recapture of key strategic peaks after significant effort and casualties.

The Srinagar-Leh highway was secured, and byJuly 26, 1999, India declared victory

Operation Safed Sagar (Air Campaign)

Operation Safed Sagar(meaning 'White Sea')was the codename for theIndian Air Force's (IAF) air campaign in support of the Indian Army during the Kargil War.

The IAF was tasked with providing air support to ground troops by attacking enemy positions, disrupting their supply lines, and providing reconnaissance.

The IAF was deployed relatively late in the conflict, with the first air strikes commencing on May 26, 1999, several weeks after the initial detection of the intrusion.

This delay was partly due to concerns about escalating the conflict and crossing the Line of Control.

The IAF deployed a variety of aircraft, includingMiG-21s, MiG-23s, MiG-27s, andMirage 2000s.Mi-17helicopters were used for troop insertion, casualty evacuation, and some armed sorties.

Later, the precision-guided laser-guided bombs (LGBs) fired from Mirage 2000 aircraft proved highly effective in destroying well-entrenched enemy bunkers on peaks like Tiger Hill and supply dumps.

Outcome: India regains territory, international support for India

By26 July 1999, Indian forces had successfully retaken most of the infiltrated territory.

This day is now observed annually asKargil Vijay Diwas.

The war resulted in527 Indian soldiers killedand over 1,300 wounded.

Pakistani casualties were estimated to be between 700 and 1,000, though Pakistan officially denied the involvement of its regular army, claiming the intruders were Kashmiri militants, a claim later disproved.

It severely damaged Pakistan’s international credibility, as its official narrative was contradicted by evidence.

The conflict boosted the Indian military's morale and public image, especially given the heroic feats of soldiers like Captain Vikram Batra, Lt. Manoj Pandey, and others who were posthumously awarded gallantry medals

Politically, the Kargil war increased support for the Indian government at the time and underscored the need for better border vigilance.

Other Conflicts and Surgical Strikes

Beyond the major wars, India and Pakistan have engaged in other significant conflicts and military actions, reflecting the continuing tensions and evolving nature of their relationship.

Operation Meghdoot (1984)

On13th April 1984, under Prime MinisterIndira Gandhi, Operation Meghdoot was launched by the Indian Army to preempt Pakistan’s attempt to occupy theSiachen Glacier, a strategically significant and disputed region in theeastern Karakoram range of the Himalayas.

Acting on intelligence, India airlifted troops to key passes, Saltoro Ridge, Sia La, Bilafond La, and secured dominating heights before Pakistani forces could arrive.

It marked thefirst military operation conducted at such extreme altitudes(above 18,000 feet), and India has maintained control of the glacier since.

Despite harsh weather and treacherous terrain, Siachen remains a militarized zone, with both nations maintaining a presence.

Operation Brasstacks (1986–87)

Operation Brasstacks was one of thelargest peacetime military exercises ever conducted in South Asia, held by India in Rajasthan near the Pakistan border.

As the Chief of the Army Staff,General K. Sundarji, planned and executed the operation that involved over 500,000 troops, tanks, artillery, and air support, simulating deep strike maneuvers.

Pakistan viewed it as a possible precursor to invasion and responded with its own military mobilization.

The situation escalated into a major standoff, raising fears of a full-scale war or nuclear confrontation.

Diplomatic backchannel talks helped de-escalate tensions, highlighting how close the region had come to conflict despite the absence of active war.

, India carried out

surgical strikes (unofficial codename: Operation X)

across the Line of Control (LoC) in Pakistan-Occupied Kashmir (PoK) in retaliation

for the Uri terror attack(3)

Operation Parakram (2001
2002)Operation Parakram was India’s largest military mobilization since 1971, carried out in response to theDecember 2001 terrorist attack on the Indian Parliamentby Pakistan-based groups
Over 500,000 Indian troops were deployed along the India
Pakistan borderfor nearly 10 months, and both nations stood on the brink of war
Indo-Pak Wars and Conflicts SummaryConflict / WarYearTrigger / CauseMajor OperationsOutcomeFirst Kashmir War1947
1948Pakistani tribal invasion after J&K's accession to IndiaOperation Gulmarg (Pak),Operation Rescue (India)Ceasefire; UN intervention; LoC establishedSecond Kashmir War1965Pakistan's infiltration in J&K (Operation Gibraltar)Operation Grand Slam (Pak),Operation Riddle (India)Stalemate; Tashkent Agreement signedBangladesh Liberation War1971Repression in East Pakistan; refugee crisisOps Trident,Python,Cactus Lily,Meghna BridgeIndian victory; creation of BangladeshSiachen Conflict1984–PresentStrategic occupation of Siachen GlacierOperation MeghdootIndia controls the glacier; ongoing deploymentKargil War1999Pakistani intrusions in the Kargil sectorOperation Vijay (Army),Safed Sagar (IAF)India regained territory, global supportOperation Parakram2001–2002Attack on the Indian ParliamentFull troop mobilization (no war)10-month standoff; diplomatic resolutionSurgical Strikes2016Uri army base attackCross-LoC Para SF strikesDestroyed terror pads; policy shiftBalakot Air Strikes2019Pulwama suicide bombingOperation Bandar (IAF)Airstrike on Balakot camp; escalationOperation Sindoor2025Pahalgam terror attack killing 27 civiliansAir/missile strikes in Pak & PoK100+ militants killed; drone/missile clashUnderstanding these major Indo-Pak wars and related conflicts is essential for comprehending the complex history and ongoing dynamics of the South Asian subcontinent, a crucial area of study for various competitive examinations