The Partition of India came in 1947 with the sudden grant of independence. It was the intention of those who wished for a Muslim state to have a clean partition between independent and equal "Pakistan" and "Hindustan" once independence came.
Nearly one third of the Muslim population of India remained in the new India.
Inter-communal violence between Hindus, Sikhs and Muslims resulted in between 200,000 and 2 million casualties leaving 14 million people displaced.[a]
The war, also called the First Kashmir War, started in October 1947 when Pakistan feared that the Maharaja of the princely state of Kashmir and Jammu would accede to India. Following partition, princely states were left to choose whether to join India or Pakistan or to remain independent. Jammu and Kashmir, the largest of the princely states, had a majority Muslim population and significant fraction of Hindu population, all ruled by the Hindu MaharajaHari Singh. Tribal Islamic forces with support from the army of Pakistan attacked and occupied parts of the princely state forcing the Maharaja to sign the Instrument of Accession of the princely state to the Dominion of India to receive Indian military aid. The UN Security Council passed Resolution 47 on 22 April 1948. The fronts solidified gradually along what came to be known as the Line of Control. A formal cease-fire was declared at 23:59 on the night of 1 January 1949.: 379 India gained control of about two-thirds of the state (Kashmir Valley, Jammu and Ladakh) whereas Pakistan gained roughly a third of Kashmir (Azad Kashmir, and Gilgit-Baltistan). The Pakistan controlled areas are collectively referred to as Pakistan administered Kashmir.
This war started following Pakistan's Operation Gibraltar, which was designed to infiltrate forces into Jammu and Kashmir to precipitate an insurgency against rule by India. India retaliated by launching a full-scale military attack on West Pakistan. The seventeen-day war caused thousands of casualties on both sides and witnessed the largest engagement of armored vehicles and the largest tank battle since World War II. The hostilities between the two countries ended after a ceasefire was declared following diplomatic intervention by the Soviet Union and USA and the subsequent issuance of the Tashkent Declaration. India had the upper hand over Pakistan when the ceasefire was declared.
Pakistan attacked at several places along India's western border with Pakistan, but the Indian Army successfully held their positions. The Indian Army quickly responded to the Pakistan Army's movements in the west and made some initial gains, including capturing around 15,010 square kilometres (5,795 square miles) of Pakistani territory (land gained by India in Pakistani Kashmir, Pakistani Punjab and Sindh sectors but gifted it back to Pakistan in the Simla Agreement of 1972, as a gesture of goodwill). Within two weeks of intense fighting, Pakistani forces in East Pakistansurrendered to the joint command of Indian and Bangladeshi forces following which the People's Republic of Bangladesh was created. The war resulted in the surrender of more than 90,000 Pakistani Army troops. In the words of one Pakistani author, "Pakistan lost half its navy, a quarter of its air force and a third of its army".
Commonly known as the Kargil War, this conflict between the two countries was mostly limited. During early 1999, Pakistani troops infiltrated across the Line of Control (LoC) and occupied Indian territory mostly in the Kargil district. India responded by launching a major military and diplomatic offensive to drive out the Pakistani infiltrators. Two months into the conflict, Indian troops had slowly retaken most of the ridges that were encroached by the infiltrators. According to official count, an estimated 75%–80% of the intruded area and nearly all high ground was back under Indian control.
Fearing large-scale escalation in military conflict, the international community, led by the United States, increased diplomatic pressure on Pakistan to withdraw forces from remaining Indian territory.
Faced with the possibility of international isolation, the already fragile Pakistani economy was weakened further. The morale of Pakistani forces after the withdrawal declined as many units of the Northern Light Infantry suffered heavy casualties. The government refused to accept the dead bodies of many officers, an issue that provoked outrage and protests in the Northern Areas. Pakistan initially did not acknowledge many of its casualties, but Nawaz Sharif later said that over 4,000 Pakistani troops were killed in the operation and that Pakistan had lost the conflict. By the end of July 1999, organized hostilities in the Kargil district had ceased.
The war was a major military defeat for the Pakistani Army.
Other armed engagements
Apart from the aforementioned wars, there have been skirmishes between the two nations from time to time. Some have bordered on all-out war, while others were limited in scope. The countries were expected to fight each other in 1955 after warlike posturing on both sides, but full-scale war did not break out.
Insurgency in Balochistan: An insurgency in Balochistan province of Pakistan has also caused tensions recently. Pakistan has accused India of causing the insurgency with the help of ousted Baloch leaders, militant groups and terrorist organizations like the Balochistan Liberation Army. According to Pakistani officials these militants are trained in neighboring Afghanistan. In 2016, Pakistan alleged that an Indian spy Kulbhushan Jadhav was arrested by Pakistani forces during a counter-intelligence operation in Balochistan.
Operation Brasstacks: The largest of its kind in South Asia, it was conducted by India between November 1986 and March 1987. Pakistani mobilisation in response raised tensions and fears that it could lead to another war between the two neighbours.: 129 
2008 Indo-Pakistani standoff: a stand-off between the two nations following the 2008 Mumbai attacks which was defused by diplomatic efforts. Following ten coordinated shooting and bombing attacks across Mumbai, India's largest city, tensions heightened between the two countries since India claimed interrogation results alleging Pakistan's ISI supporting the attackers while Pakistan denied any official Pakistani involvement in the attacks. Pakistan placed its air force on alert and moved troops to the Indian border, voicing concerns about proactive movements of the Indian Army and the Indian government's possible plans to launch attacks on Pakistani soil. The tension defused in a short time and Pakistan moved its troops away from the border.
2016–2018 India–Pakistan border skirmishes: On 29 September 2016, border skirmishes between India and Pakistan began following reported "surgical strikes" by India against militant launch pads across the Line of Control in Pakistani-administered Kashmir "killing a large number of terrorists". Pakistan rejected that a strike took place, stating that Indian troops had not crossed the Line of Control but had only skirmished with Pakistani troops at the border, resulting in the deaths of two Pakistani soldiers and the wounding of nine. Pakistan rejected India's reports of any other casualties. Pakistani sources reported that at least eight Indian soldiers were killed in the exchange, and one was captured. India confirmed that one of its soldiers was in Pakistani custody, but denied that it was linked to the incident or that any of its soldiers had been killed. The Indian operation was said to be in retaliation for a militantattack on the Indian army at Uri on 18 September in the Indian-administered state of Jammu and Kashmir that left 19 soldiers dead. In the succeeding days and months, India and Pakistan continued to exchange fire along the border in Kashmir, resulting in dozens of military and civilian casualties on both sides.
2019 India–Pakistan border skirmishes: On 14 February 2019, a suicide attack on a convoy of India's CRPF resulted in the death of at least 40 troops. Responsibility for the attack was claimed by the Pakistan-based Jaish-e-Mohammad (JeM). 12 days later in February 2019, Indian jets crossed the international border to conduct air strikes on an alleged JeM camp in the Khyber Pakhtunkhwa province of Pakistan. India claimed that it killed a very large number of militants belonging to JeM. Pakistan rejected to have suffered any losses. According to the sources and satellite imagery analysis, Indian air force appears to caused minimal damage to the buildings concerned, however, Pakistan had to close the site for one and a half month or 43 days before opened to media. The incidents escalated the tension between India and Pakistan. The following day, Indian and Pakistani air forces got locked on in an aerial engagement. Pakistan claimed to have shot down two Indian aircraft and capturing one pilot Abhinandan Varthaman. Pakistan military officials claimed that the wreckage of one Indian aircraft fell in Pakistan administered Kashmir while the other one fell in Indian administered Kashmir rumored to be a Sukhoi Su-30MKI. Meanwhile, Indian version was about loss a MiG-21 while shooting down a Pakistani F-16. The IAF also displayed remnants of an AIM-120 AMRAAM missile that they claimed could only be fired by F-16's air planes. The missiles were said to have fired against and jammed by Su-30 by IAF. Pakistan rejected the Indian claim of an F-16 shot down. It initially released three or later on displayed all four air to air missiles of MiG-21 Bison with all missile seeker heads recovered intact from the wreckage however with mid-body of one of R-73 destroyed and claimed that non-of missiles were ever fired. Following the threats of a full-scale war, Abhinandan was released within two days. The Pentagon correspondent of Foreign Policy magazine, in a report claimed that Pakistan invited the United States to physically count its F-16 planes after the incident. Two senior U.S. defense officials told Foreign Policy that U.S. personnel recently counted Pakistan's F-16s and found none missing. A Pentagon spokesman said they was not aware of any count being conducted, but the Pentagon did not put out any official statement on the matter. However, there have been no leaks countering the Foreign Policy report. India released the electronic footage of aerial engagement to re-assert its claims. Pakistani officials rejected radar images released by India. Stand off followed with intermittent firings across the LoC. Months later on 8 October, India on its Air Force Day, flew the same Su-30MKI "Avenger 1" aircraft in a flypast that Pakistan had claimed it had shot down during the air battle on 27 February.
2020–2021 India–Pakistan border skirmishes: The standoff intensified when a major exchange of gunfire and shelling erupted between Indian and Pakistani troops in November 2020 along the Line of Control which left at least 22 dead, including 11 civilians.Pakistan's foreign ministry said India had violated the ceasefire at least 2,729 times in 2020 which killed 21 Pakistani civilians and seriously injured 206 others. In February 2021, India and Pakistan released a joint statement, stating that after discussions over established hotlines, the two sides agreed to "strict observance" of all peace and ceasefire agreements with effect from midnight of 25 February 2021. Both sides agreed existing forms of hotline contact and border flag meetings would be utilized to resolve any future misunderstanding.
Kirana-I: In the 1980s a series of 24 different cold tests were conducted by PAEC, led by chairman Munir Ahmad Khan under extreme secrecy. The tunnels at Kirana Hills, Sargodha, are reported to have been bored after the Chagai nuclear test sites, it is widely believed that the tunnels were constructed sometime between 1979 and 1983. As in Chagai, the tunnels at Kirana Hills had been bored and then sealed and this task was also undertaken by PAEC's DTD. Later due to excessive US intelligence and satellite focus on the Kirana Hills site, it was abandoned and nuclear weapons testing was shifted to the Kala Chitta Range.
Pokhran-II (Operation Shakti): On 11 May 1998 India detonated another five nuclear devices at Pokhran Test Range. With jubilation and large scale approval from the Indian society came International sanctions as a reaction to this test, the most vehement reaction of all coming from Pakistan. Great ire was raised in Pakistan, which issued a stern statement claiming that India was instigating a nuclear arms race in the region. Pakistan vowed to match India's nuclear capability with statements like: "We are in a headlong arms race on the subcontinent".
Chagai-II: Two days later, on 30 May 1998, Pakistan detonated a sixth nuclear device completing its own series of underground tests with this being the last the two nations have carried out to date.
The nations of South Asia observe national and armed forces-specific days which originate from conflicts between India and Pakistan as follows:
The USSR remained neutral during the 1965 war and played a pivotal role in negotiating the peace agreement between India and Pakistan.
The Soviet Union provided diplomatic and military assistance to India during the 1971 war. In response to the US and UK's deployment of the aircraft carriers USS Enterprise and HMS Eagle, Moscow sent nuclear submarines and warships with anti-ship missiles in the Arabian Sea and Indian Ocean, respectively.
Russia maintained a non-belligerent policy for both sides. Russia helped negotiate peace in 2001–02 and helped divert the 2008 crisis.
In popular culture
These wars have provided source material for both Indian and Pakistani film and television dramatists, who have adapted events of the war for the purposes of drama and to please target audiences in their nations.
^Prasad, S.N.; Dharm Pal (1987). History of Operations in Jammu and Kashmir 1947–1948. New Delhi: History Department, Ministry of Defence, Government of India. (printed at Thomson Press (India) Limited). p. 418.
^Dijink, Gertjan (2002). National Identity and Geopolitical Visions: Maps of Pride and Pain. Routledge. ISBN9781134771295. The superior Indian forces, however, won a decisive victory and the army could have even marched on into Pakistani territory had external pressure not forced both combatants to cease their war efforts.
^ ab"Pakistan :: The Indo-Pakistani War of 1965". Library of Congress Country Studies, United States of America. April 1994. Retrieved 2 October 2010. Quote: Losses were relatively heavy--on the Pakistani side, twenty aircraft, 200 tanks, and 3,800 troops. Pakistan's army had been able to withstand Indian pressure, but a continuation of the fighting would only have led to further losses and ultimate defeat for Pakistan.
^Hagerty, Devin (2005). South Asia in world politics. Rowman & Littlefield, 2005. p. 26. ISBN0-7425-2587-2. Quote: The invading Indian forces outfought their Pakistani counterparts and halted their attack on the outskirts of Lahore, Pakistan's second-largest city. By the time United Nations intervened on 22 September, Pakistan had suffered a clear defeat.
^Wolpert, Stanley (2005). India (3rd ed. with a new preface. ed.). Berkeley: University of California Press. p. 235. ISBN0520246969. Quote: India, however, was in a position to inflict grave damage to, if not capture, Pakistan's capital of the Punjab when the cease-fire was called, and controlled Kashmir's strategic Uri-Poonch bulge, much to Ayub's chagrin.
^Kapur, S. Paul (2007). Dangerous Deterrent: Nuclear Weapons Proliferation and Conflict in South Asia (23rd ed.). Stanford University Press. p. 227. ISBN978-0804755498.
^MacDonald, Myra (2017). Defeat is an Orphan: How Pakistan Lost the Great South Asian War. Oxford University Press. pp. 27, 53, 64, 66. ISBN978-1-84904-858-3. p. 27: It was not so much that India won the Great South Asian War but that Pakistan lost it.p. 53: The story of the Kargil War—Pakistan's biggest defeat by India since 1971 —is one that goes to the heart of why it lost the Great South Asian War.p. 64: Afterwards, Musharraf and his supporters would claim that Pakistan won the war militarily and lost it diplomatically. In reality, the military and diplomatic tides turned against Pakistan in tandem.p. 66: For all its bravado, Pakistan had failed to secure even one inch of land. Less than a year after declaring itself a nuclear-armed power, Pakistan had been humiliated diplomatically and militarily.
^Lavoy, Peter René, ed. (2009). Asymmetric Warfare in South Asia: The Causes and Consequences of the Kargil Conflict. Cambridge University Press. p. 180. ISBN978-0-521-76721-7. The false optimism of the architects of the Kargil intrusion, colored by the illusion of a cheap victory, was not only the main driver of the operation, and hence the crisis, it also was the cause of Pakistan's most damaging military defeat since the loss of East Pakistan in December 1971.
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