War in Afghanistan (2001–2021)

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War in Afghanistan (2001–2021)
Part of the Global War on Terrorism and the Afghan conflict
Seven soldiers in beige tactical gear huddle behind a row of green sandbags on a mountainside, pointing rifles in various directions
A U.S. Air Force F-15E Strike Eagle dropping 2000-pound munitions
An Afghan National Army soldier in camouflage gear points a rifle over a dirt wall
British soldiers prepare to board a Chinook twin-rotor helicopter landing on a field
An Afghan National Army soldier stands atop a desert-camouflaged Humvee
Taliban soldiers ride a beige Humvee through the streets of Kabul
Soldiers in green camouflage gear trudge through snow during a snowstorm

Clockwise from top-left:
American troops in a firefight with Taliban insurgents in Kunar Province; An American F-15E Strike Eagle dropping 2000 pound JDAMs on a cave in eastern Afghanistan; an Afghan soldier surveying atop a Humvee; Afghan and American soldiers move through snow in Logar Province; victorious Taliban fighters after securing Kabul; an Afghan soldier surveying a valley in Parwan Province; British troops preparing to board a Chinook during Operation Black Prince
Date7 October 2001 – 30 August 2021
(19 years, 10 months, 3 weeks and 2 days)
First phase: 7 October 2001 – 28 December 2014
Second phase: 1 January 2015 – 30 August 2021[34][35]
Location
Result Taliban victory[36]
First phase:
Second phase:
Territorial
changes
Taliban control over Afghanistan increases compared to pre-intervention territory
Belligerents

Invasion (2001):
 Northern Alliance
 United States
 United Kingdom
 Canada

 Germany[1]
 Australia
 Italy
 New Zealand[2]
 Iran
Invasion (2001):
 Islamic Emirate of Afghanistan[3]
 Al-Qaeda
 055 Brigade[4][5]
ISAF/RS phase (2001–2021):
 Islamic State of Afghanistan (2001–2002)
 Afghan Transitional Authority (2002–2004)
 Islamic Republic of Afghanistan (2004–2021) Resolute Support (2015–2021; 36 countries)[7]
High Council of the Islamic Emirate of Afghanistan (allegedly; from 2015)[8][9]
Khost Protection Force and other pro-government paramilitaries[10]
ISAF/RS phase (2001–2021):
 
Al-Qaeda in the Indian Subcontinent[12]
Supported by:
Taliban splinter groups

RS phase (2015–2021):

ISIL–KP (from 2015)[32]
  • Islamic Movement of Uzbekistan (since 2015)[33]
Commanders and leaders
Strength

ISAF: 130,000+ (Peak Strength)[42]

Afghan National Defense and Security Forces: 307,947 (Peak Strength, January 2021)[43]

Resolute Support Mission: 17,178 (Peak Strength, October 2019)[44]

Defence Contractors: 117,227 (Peak Strength, Q2 2012)[45]

High Council of the Islamic Emirate of Afghanistan: 3,000–3,500[46]

Khost Protection Force: 3,000-10,000 (2018)[47]

Afghanistan Taliban: 58,000-100,000
(As of February 2021)[48]

HIG: 1,500–2,000+ (2014)[52]
al-Qaeda: ~300 in 2016[53][54][55] (~ 3,000 in 2001)[53]


Fidai Mahaz: 8,000 (2013)[39]


Islamic State ISIL–KP: 3,500–4,000 (2018, in Afghanistan)[56]
Casualties and losses

Afghan security forces:
66,000–69,095 killed[57][58]
Northern Alliance:
200 killed[59][60][61][62][63]

Coalition:
Dead: 3,579

Wounded: 23,536

  • United States: 20,713[65]
  • United Kingdom: 2,188[66]
  • Canada: 635[67]

Contractors
Dead: 3,917[58][68][69]
Wounded: 15,000+[68][69]

Total killed: 76,591

Taliban insurgents:
52,893 killed[58] (2,000+ al-Qaeda fighters)[53]


ISIL–KP:
2,400+ killed[32]

Civilians killed: 46,319[58]


Total killed: 176,206 (per Brown University)[70]
212,191+ (per UCDP)
[71]


a The continued list includes nations who have contributed fewer than 200 troops as of November 2014.[72]

b The continued list includes nations who have contributed fewer than 200 troops as of May 2017.[73]

The War in Afghanistan was an armed conflict from 2001 to 2021. It was the direct response to the

relocated to neighboring Pakistan. The conflict officially ended with the 2021 Taliban offensive, which overthrew the Islamic Republic, and re-established the Islamic Emirate. It was the longest war in the military history of the United States, surpassing the length of the Vietnam War
(1955–1975) by approximately six months.

Following the September 11 attacks, President George W. Bush demanded that the Taliban immediately extradite al-Qaeda leader Osama bin Laden to the United States; the Taliban refused to do so without evidence of Bin Laden's involvement. After the expelling of the Taliban and their allies, the US-led coalition remained in Afghanistan, forming a security mission (ISAF)—sanctioned by the United Nations—with the goal of creating a new democratic authority in the country that would prevent the Taliban from returning to power.[74] A new Afghan Interim Administration was established, and international rebuilding efforts were launched.[75] By 2003, the Taliban had reorganized under their founder, Mullah Omar, and began a widespread insurgency against the new Afghan government and coalition forces. Insurgents from the Taliban and other Islamist groups waged asymmetric warfare, fighting with guerrilla warfare in the countryside, suicide attacks against urban targets, and reprisals against perceived Afghan collaborators. By 2007, large parts of Afghanistan had been retaken by the Taliban.[76][77] In response, the coalition sent a major influx of troops for counter-insurgency operations, with a "clear and hold" strategy for villages and towns; this influx peaked in 2011, when roughly 140,000 foreign troops were operating under ISAF command across Afghanistan.[78]

A US covert operation in neighboring Pakistan led to the

withdrawal of all US troops from Afghanistan by 2021.[82] In exchange, the Taliban pledged to prevent any militant group from staging attacks from Afghan territory against the US and its allies.[83] However, the Afghan government was not a party to the deal and rejected its terms.[84] Coinciding with the withdrawal of troops, the Taliban launched a broad offensive throughout the summer of 2021, successfully reestablishing their control over Afghanistan, including the capital city of Kabul on 15 August. On the same day, the last president of the Islamic Republic, Ashraf Ghani, fled the country; the Taliban declared victory and the war was formally brought to a close.[85] By 30 August, the last American military aircraft departed from Afghanistan, ending the protracted US-led military presence in the country.[86][87]

Overall, the war killed an estimated 176,000–212,000+ people, including 46,319 civilians.[88] While more than 5.7 million former refugees returned to Afghanistan after the 2001 invasion,[89] by the time the Taliban returned to power in 2021, 2.6 million Afghans remained refugees,[90] while another 4 million were internally displaced.[91][92]

Names

The war is named the War in Afghanistan from 2001 to 2021

Pashto: د افغانستان جګړه Da Afganistan Jang).[102][103][104]

Prelude

The military situation of the Afghan Civil War in 1996 between the Taliban (red) and the Northern Alliance (blue)

Rise of the Taliban

The

By 2001, the Taliban controlled as much as 90% of Afghanistan, with the Northern Alliance confined to the country's northeast corner. Fighting alongside Taliban forces were some 28,000–30,000 Pakistanis (usually also Pashtun) and 2,000–3,000 Al-Qaeda militants.[111][112][113][114]

Al-Qaeda

The

camps in Afghanistan, it also supported training camps of other organizations. An estimated 10,000 to 20,000 men passed through these facilities before 9/11, most of whom were sent to fight for the Taliban against the United Front. A smaller number were inducted into al-Qaeda.[116]

After the August

Special Activities Division paramilitary teams were active in Afghanistan in the 1990s in clandestine operations to locate and kill or capture Osama bin Laden. These teams planned several operations but did not receive the order to proceed from President Clinton. Their efforts built relationships with Afghan leaders that proved essential in the 2001 invasion.[117]

September 11 attacks

Ground Zero in New York following the September 11th attacks, September 2001

On the morning of Tuesday, September 11, 2001, a total of 19

Arab Muslim men—15 of whom were from Saudi Arabia—carried out four coordinated attacks in the United States. Four commercial passenger jet airliners were hijacked.[118][119] The hijackers intentionally crashed two of the airliners into the Twin Towers of the World Trade Center in New York City, killing everyone on board and more than 2,000 people in the buildings. Both buildings collapsed within two hours from damage related to the crashes, destroying and damaging nearby buildings. The hijackers crashed a third airliner into the Pentagon in Arlington, Virginia, just outside Washington, D.C. The fourth plane crashed into a field near Shanksville, in rural Pennsylvania, after some of its passengers and flight crew attempted to retake control of the plane, which the hijackers had redirected toward Washington, D.C., to target the White House, or the US Capitol. No one aboard the flights survived. The death toll among responders including firefighters and police was 836 as of 2009.[120] Total deaths were 2,996, including the 19 hijackers.[120]

Osama bin Laden planned and coordinated the attacks, and the US desire to hold him accountable became the casus belli for invasion. Historian Carter Malkasian writes that "seldom in history has one man so singlehandedly provoked a war." Bin Laden sought, successfully, to draw the US into an extended war similar to that fought against the Soviets.[121]: 62–64  The Taliban publicly condemned the 11 September attacks.[122] They also greatly underestimated the US's willingness to go to war. The US was mistaken in its belief that the Taliban and al-Qaeda were almost inseparable when, in fact, they had very different goals and leaders.[121]: 65–70 

US ultimatum to the Taliban

Immediately after the 9/11 attacks, the United States National Security Council agreed that military action would probably have to be taken against Al-Qaeda and the Taliban. However, Bush decided to issue an ultimatum to the Taliban first,[121]: 54  demanding that the Taliban hand over Osama bin Laden, "close immediately every terrorist training camp, hand over every terrorist and their supporters, and give the United States full access to terrorist training camps for inspection."[122] The same day, religious scholars met in Kabul, deciding that bin Laden should be surrendered; however, Mullah Omar decided that "turning over Osama would only be a disgrace for us and Islamic thought and belief would be a weakness", and that the US would continue making demands after surrendering bin Laden, who he claimed was innocent.[121]: 56  The Taliban refused the ultimatum, saying that Osama bin Laden was protected by the traditional Pashtun laws of hospitality.[123][124]

In the weeks ahead and at the beginning of the US and NATO invasion of Afghanistan, the Taliban demanded evidence of bin Laden's guilt but subsequently offered to hand him over to a third country if the US stopped its bombing and provided evidence of his guilt.[125][126] A Bush administration official later stated that their demands were "not subject to negotiation" and that it was "time for the Taliban to act now."[127] Covert US military action began soon after, and the War started officially on 7 October 2001.[121]: 58 

History

Tactical overview

The war contained two main factions: the Coalition, which included the US and its allies (eventually supporting the government of the Islamic Republic of Afghanistan), fighting against the Taliban, its allies, and its militias. Complicating the fight were Taliban splinter groups and other, more radical religious groups such as al-Qaeda and later the Islamic State. These radical groups sometimes fought for the Taliban, sometimes fought for their own goals, and sometimes fought against both the Taliban and the government.

Afghanistan is a rural country; in 2020, some 80% of its 33 million people lived in the countryside.[121]: 12  This predisposes warfare to rural areas, and provides ample hiding spots for guerrilla fighters. The country also has harsh winters, which favors spring or summertime military offensives after winter lulls in fighting.[128][129] Afghanistan is 99.7% Muslim,[130] which affected the ideology of both the Taliban and the Afghan government. Islam has historically allowed Afghan leaders to overcome tribal differences and conflict, and provided a sense of unity, especially against foreigners and non-Muslims. Centuries of foreign invasion by non-Muslims cemented the religious nature of resisting outsiders and the Afghan identity.[121]: 17–19  The impact of local religious leaders (mullahs) is important in Afghanistan, and they could influence the population as much as the government. Mullahs have traditionally been important in prescribing resistance to outsiders through calls for holy war or jihad.[121]: 23–24 

Afghanistan is a largely tribal society, and this significantly influences Afghan society and politics. Tribalism is largely a source of division, unlike Islam. Pashtuns are the largest ethnic group in Afghanistan, comprising between 38% and 50% of the population.[131] Pashtunwali, the traditional way of life for the Pashtuns, guided most tribal decision making. Tribal unity was often weak as well due to Pashtunwali's method of dealing with feuds. Traditionally, Afghan leaders have depended on tribes to keep order in rural areas because without their cooperation the state was often ineffective and weak. Afghans were more loyal to their own community and tribe, not the state, which meant that tribes would align with either the Taliban or the Government as was most beneficial.[121]: 19–22 

The significant difference in power between high-tech Coalition militaries and the guerrilla Taliban led to asymmetric warfare. Owing to their roots in the anti-Soviet Mujahideen, the Taliban carried on the guerrilla tactics developed in the 1980s. The Mujihdeen operated in small cadres of 10 to 50 men, armed with a combination of outdated and (usually looted) modern weapons.[121]: 31  The Taliban increasingly used guerrilla tactics such as suicide, car and roadside bombs (IEDs), and targeted assassinations.[132] By 2009, IEDs had become the Taliban's weapon of choice.[133] The Taliban also used insider attacks as the war drew on, by planting personnel in the Afghan military and police forces.[134]

2001–2002: Invasion and early operations

US Air Force Combat Controllers with Northern Alliance troops on horseback in Samangan Province
, 2001

Though the US officially invaded on 7 October 2001 by launching Operation Enduring Freedom, covert operations had begun several weeks earlier. Fifteen days after the 9/11 attack, the US covertly inserted members of the CIA's Special Activities Division into Afghanistan, forming the Northern Afghanistan Liaison Team.[135] They linked up with the Northern Alliance in the Panjshir Valley north of Kabul.[136] In October, 12-man Special Forces teams began arriving in Afghanistan to work with the CIA and Northern Alliance.[136] Within a few weeks the Northern Alliance, with assistance from the US ground and air forces, captured several key cities from the Taliban.[137][138] The Taliban retreated throughout the country, holding steady only in Kunduz Province, outmatched by US air support. By November, the Taliban had lost control of most of the country.[121]: 70–75 

The US did not invade alone: it began with assistance from the UK, and eventually over a dozen more countries.[139][140][141] The US and its allies drove the Taliban from power and built military bases near major cities across the country. Most al-Qaeda and Taliban were not captured, escaping to neighboring Pakistan or retreating to rural or remote mountainous regions.[142] On 20 December 2001, the United Nations authorized an International Security Assistance Force (ISAF), with a mandate to help the Afghans maintain security in Kabul and surrounding areas.[143] Its mandate did not extend beyond the Kabul area for the first few years.[144] Eighteen countries were contributing to the force in February 2002.[citation needed]

The CIA created Counter-terrorism Pursuit Teams staffed by Afghans at the war's beginning.[145][146] This force grew to over 3,000 by 2010 and was considered one of the "best Afghan fighting forces."[146] These units were not only effective in operations against the Taliban and al-Qaeda forces in Afghanistan,[147] but also expanded their operations into Pakistan.[148]

Who would lead the country became an acute political question. At the

Afghan Transitional Administration. The agreement provided steps that would lead to democracy for the country.[149]

Shortly after the elevation of Karzai to the president on 5 December, the Taliban may have tried to seek a conditional surrender to Karzai. There are two conflicting accounts. The first is that an agreement, possibly signed by Mullah Omar, leader of the Taliban, was reached wherein the Taliban would surrender in exchange for immunity. The second is that the agreement was more narrowly focused on surrendering

Zabul, Helmand and Uruzgan.[150]

Canadian soldiers from 3PPCLI, search for Al-Qaeda and Taliban fighters after an air assault, approach on an objective north of Qalati Ghilji, 2002

By late November, bin Laden was at a fortified training camp in Tora Bora. The Battle of Tora Bora began on 30 November. CIA teams working with tribal militias followed bin Laden there and began to call in airstrikes to clear out the mountainous camp, with special forces soon arriving in support. While the tribal militia numbered 1,000, it was not fighting eagerly during Ramadan. While the CIA requested that United States Army Rangers be sent and Marines were ready to deploy, they were declined. Bin Laden was eventually able to escape at some point in December to Pakistan.[121]: 76–79 

The invasion was a striking military success for the Coalition. Fewer than 12 US soldiers died between October and March, compared to some 15,000 Taliban killed or taken prisoner. Special forces teams and their Afghan allies had done most of the work and relatively few soldiers had been required. Karzai was a respected, legitimate, and charismatic leader. Still, according to Malkasian, the failure to capture bin Laden or negotiate with the Taliban, or include them in any way in the new government, set the course for the long war that bin Laden had dreamed of getting the US into.[121]: 86–88 

In the early years of the war, Pakistan had been seen as a firm ally, and little concern had been given to its support of the Taliban. Pakistan had also helped capture numerous top Al-Qaeda leaders, including Khalid Sheikh Mohammed. But internally, Pakistan was providing significant funding, access to safe houses, and political support to the Taliban. Public opinion in Pakistan heavily favored the Taliban, and the US invasion was viewed very negatively. The government was in no position to expel the Taliban, lest it starts a conflict within its already fragile country. Thus the Taliban continued to use Pakistan as a base of operations and a safe haven to rebuild their strength.[121]: 129–132 

2003–2005: Taliban resurgence

Coalition mistakes, Taliban start to re-organize

After initial success, the US lacked an obvious goal in Afghanistan beyond the counter-terrorism objectives of finding senior Taliban and Al-Qaeda leaders. Nation-building was initially opposed by the Bush administration, but as the US stayed, it slowly crept into the rationale for staying. In April 2002, Bush made a speech expressing a desire to rebuild Afghanistan. The US also sought to instill democracy and women's rights as a moral matter. The international community contributed to the development effort in Afghanistan, which focused on aid and creating institutions to run the country. US reconstruction efforts also focused on improving education, health care, and community development. The US also supported and funded the creation of an Afghan army in early 2002. However, the army was built slowly due to competing interests and a US belief that the Taliban were no longer a strong threat. Some in the Bush administration preferred to use the Northern Alliance and warlords as the military instead of creating a new military. The army became an afterthought and was poorly trained and equipped, which further enabled the Taliban.[121]: 89–105 

The first attempt at a larger organization of Taliban groups after the invasion occurred in April 2002 in the country's south. A shura was established by former mid-level Taliban officials in Gardi Jangal a refugee camp near the Helmand border. It operated in the core southern provinces of Kandahar, Helmand, Zabul, and Uruzgan. It was composed of 23 groups of about 50 individuals each, for a total of around 1,200. In the North Waziristan District of Pakistan, Jalaluddin Haqqani had started organizing the Haqqani network after exiling there in 2001. In early 2002 their manpower was estimated at 1,400 and had a presence in Paktia Province and Khost Province in the second half of 2002 with limited activity. They were joined by members of Al-Qaeda. Operation Jacana & Operation Condor, among others, tried to flush out the Taliban with varying results.[151]: 25–29 

Map detailing the spread of the Taliban insurgency, 2002–2006

Some members of the Taliban reached out to Karzai to open negotiations several times between 2002 and 2004, but the US was adamantly against this and ensured that all top Taliban leaders were blacklisted, such that the Afghan Government could not negotiate with them. Historian Malkasian argues that negotiations with the Taliban would have been low cost but highly effective at this stage and chocks it up to US overconfidence and hubris, and notes that all the information that the Taliban could resurge was available but ignored.[121]: 106–111  Some Taliban leaders considered joining the political process, with meetings on the issue until 2004, though these did not result in a decision to do so.[151]: 19 

From 2002 to 2005, the Taliban reorganized and planned a resurgence. Pressure on Coalition forces to hunt down terrorists led to excesses and generated some popular support for the Taliban. Coalition troops would go on missions with questionable intelligence, at one point falling prey to a false tip provided by a target's political opponents. Few high-level Taliban or al-Qaeda leaders were caught. Those captured were predominantly low-level Taliban operatives who had little information on al-Qaeda. Numerous civilians were killed in operations, including a wedding which was misinterpreted as a Taliban gathering. Repeated errors by Coalition forces drove Taliban recruitment. Many Taliban leaders who had given up arms to leave peacefully, especially after being promised amnesty by President Karzai, were increasingly harassed by the US and elements of the Afghan government. By 2004, most Taliban leaders in Afghanistan had fled back to Pakistan, where the remnants of the Taliban were hiding. Malkasian argues that the US provided significant momentum to the Taliban by its own missteps, especially by focusing on aggressive counter-terrorism and vengeance for 9/11. He further argues that these actions alone did not restart the conflict because the Taliban would have re-emerged regardless because of leaders like Mullah Omar and Jalaluddin Haqqani who had never put down arms.[121]: 119–123 

US troops board a helicopter in Zabul province, 2003

The Taliban undertook relatively few actions until 2005. Pamphlets by Taliban and other groups turned up strewn in towns and the countryside in early 2003, urging Islamic faithful to rise up against US forces and other foreign soldiers in a holy war.[152] American attention was diverted from Afghanistan when US forces invaded Iraq in March 2003.[153] In May 2003, the Taliban Supreme Court's chief justice, Abdul Salam, proclaimed that the Taliban were back, regrouped, rearmed, and ready for guerrilla war to expel US forces from Afghanistan.[154]

As the summer of 2003 continued, Taliban attacks gradually increased in frequency. Dozens of Afghan government soldiers, NGO humanitarian workers, and several US soldiers died in the raids, ambushes, and rocket attacks. Besides guerrilla attacks, Taliban fighters began building up forces in the district of Dey Chopan District in Zabul Province. The Taliban decided to make a stand there. Over the course of the summer, up to 1,000 guerrillas moved there. Over 220 people, including several dozen Afghan police, were killed in August 2003.[155] On 11 August, NATO assumed control of ISAF.[156]

Taliban leader Mullah Omar reorganized the movement, and in 2003 launched an insurgency against the government and ISAF.[157][158] From the second half of 2003 and through 2004 operations started intensifying, with night letters followed by kidnappings and assassinations of government officials and collaborating village elders by 2005, with the former leaving villages in fear. Government schools and clinics were also burned down.[151]: 34 

Privately, the Taliban were preparing a grand offensive against the Coalition. It was to be several years in the making so that enough strength could be gathered. Mullah Dadullah was put in charge of the offensive. His tatics where largely effective. He was responsible for introducing suicide bombing into wide use around 2004, as previously the Taliban had not been enamored by suicide or taking civilian lives; that had been an Al-Qaeda tactic. A network of madrassas in Pakistan catering to Afghan refugees provided a steady stream of extremist recruits willing to die.[121]: 125–127 

A US Navy Corpsman searches for Taliban fighters in Mihtarlam, 2005

Operation Asbury Park cleared out Taliban forces in the Dey Chopan District during the summer of 2004.[159] In late 2004, the then-hidden Taliban leader Mullah Omar announced an insurgency against America and the transitional Afghan government forces to "regain the sovereignty of our country."[160] The 2004 Afghan presidential election was a major target of Taliban, though only 20 districts and 200 villages elsewhere were claimed to have been successfully prevented from voting. Karzai was elected president of the country, now named the Islamic Republic of Afghanistan.[151]: 40 

The US started using drone strikes in Pakistan in 2004, starting along the Federal Tribal Areas against Taliban and Al-Qaeda militants.[161][162]

In June and July 2005, United States

Navy Seals carried out Operation Red Wings as a joint military operation in Kunar Province. The mission intended to disrupt local Taliban led by Ahmad Shah, hopefully bringing stability and facilitating the Afghan Parliament elections scheduled for September 2005. The operation was a pyrrhic victory for the Coalition, with only one survivor (dramatized in the 2013 film Lone Survivor) and 19 dead.[163][164][165] Operation Whalers would finish the job several weeks later. Taliban activity dropped significantly and Shah was seriously wounded. Shah was not able to undertake any significant operations subsequent to Operation Whalers in Kunar or neighboring provinces.[164][166]

The Taliban regained control over several villages in the south by the end of 2005, mostly because the villages were frustrated with the lack of help from the government and hoped life would be better under the Taliban. Years of planning were coming to fruition for the Taliban. By comparison, the Government was in a very weak position. The police were deeply underfunded, and the average district had only 50 officers. Some districts had no Government presence at all. Most of the country's militias (with a strength of ~100,000) had been demobilized due to international pressure to create an army, but it was still weak. Combined with an increase in tribal feuding, the conditions were perfect for a Taliban comeback.[121]: 134–136 

2006–2007: Escalating war

As insurgent attacks in the country reportedly grew fourfold between 2002 and 2006,[167] by late 2007 Afghanistan was said to be in "serious danger" of falling into Taliban control despite the presence of 40,000 ISAF troops.[168]

An Apache helicopter provides protection from the air, Lwar Kowndalan in Kandahar, 2005

From January 2006, a multinational ISAF contingent started to replace US troops in southern Afghanistan. The UK formed the core of the force, along with Australia, Canada, the Netherlands, and Estonia.[169][170][171][172][173] In January 2006, NATO's focus in southern Afghanistan was to form Provincial Reconstruction Teams. Local Taliban figures pledged to resist.[174] Since Canada wanted to deploy in Kandahar, the UK got Helmand province. Helmand was a center of poppy production, so it seemed a good region for the anti-narcotic focused UK. In hindsight, the UK were a poor choice. Pashtun Helmandis had never forgotten the 1880 Battle of Maiwand with the British, and it proved a source of significant resistance from them.[121]: 138–142 

Local intelligence suggested that the Taliban were going to wage a brutal campaign in the summer of 2006. Coalition generals sent this info up the chain of command, but decision-makers ignored warnings. The US was distracted in Iraq, and Secretary of State Rumsfeld was more interested in making the Afghan army affordable than effective. Of the 70,000 soldiers the Afghan army was supposed to have, only 26,000 had been trained and retained.[121]: 138–142 

Swedish Army medic in the Mazar-e Sharif region, 2006

Spring and summer action in 2006 by the Coalition included Operation Mountain Thrust, Operation Medusa, a Dutch/Australian offensive, the Battle of Panjwaii, Operation Mountain Fury and Operation Falcon Summit. The Coalition achieved tactical victories and area denial, but the Taliban were not completely defeated.

On 29 May 2006, a US military truck that was part of a convoy in Kabul lost control and plowed into civilian vehicles, killing one person and injuring six. The surrounding crowd got angry and a riot arose, lasting all day ending with 20 dead and 160 injured. When stone-throwing and gunfire had come from a crowd of some 400 men, the US troops had used their weapons "to defend themselves" while leaving the scene, a US military spokesman said. A correspondent for the Financial Times in Kabul suggested that this was the outbreak of "a ground swell of resentment" and "growing hostility to foreigners" that had been growing and building since 2004.[175][176]

UK actions in early 2007 included

Operation Lastay Kulang. The UK Ministry of Defence also announced its intention to bring British troop levels in the country up to 7,700.[177]

In March 2007, the US deployed some 3,500 more troops, though the pace of deployment was slow due to American priorities in Iraq.[178][179] In the first five months of 2008, the number of US troops in Afghanistan increased by over 80% with a surge of 21,643 more troops, bringing the total from 26,607 in January to 48,250 in June.[180]

On 4 March 2007, US Marines killed at least 12 civilians and injured 33 in Shinwar district, Nangarhar,

Shinwar massacre."[182] The 120 member Marine unit responsible for the attack were ordered to leave the country because the incident damaged the unit's relations with the local population.[183]

During the summer, NATO forces achieved tactical victories at the Battle of Chora in Orūzgān, where Dutch and Australian ISAF forces were deployed. The Battle of Musa Qala took place in December. Afghan units were the principal fighting force, supported by British forces.[184] Taliban forces were forced out of the town.

In 2007, after more than 5 years of war, Western officials and analysts estimated the strength of Taliban forces at about 10,000 fighters fielded at any given time. Of that number, only 2,000 to 3,000 were highly motivated, full-time insurgents.[185] The rest were volunteer units, made up of young Afghans, angered by deaths of Afghan civilians in military airstrikes and American detention of Muslim prisoners who had been held for years without being charged.[186] In 2007, more foreign fighters came into Afghanistan than ever before, according to officials. Approximately 100 to 300 full-time combatants were foreigners, many from Pakistan, Uzbekistan, Chechnya, perhaps Turkey and western China, and other countries. They were reportedly more violent, and uncontrollable, often bringing superior video-production or bomb making expertise.[187] By 2010, the Taliban had as many as 25,000 dedicated soldiers, almost as many as before 9/11.[188]

General McChrystal, newly appointed as US commander in Afghanistan, said that the Taliban had gained the upper hand. In a continuation of the Taliban's usual strategy of summer offensives,[189] the militants aggressively spread their influence into north and west Afghanistan and stepped up their attack in an attempt to disrupt presidential polls.[190] He added that the US strategy was to stop their momentum, and focus on protecting and safeguarding Afghan civilians, calling it "hard work."[191]

2008-2009: NATO build-up, Pakistan skirmishes, and Karzai re-election

On 13 June 2008, Taliban fighters demonstrated their ongoing strength, liberating all prisoners in Kandahar jail. The operation freed 1200 prisoners, 400 of whom were Taliban, causing a major embarrassment for NATO.[192] By the end of 2008, the Taliban apparently had severed remaining ties with al-Qaeda.[193] According to senior US military intelligence officials, perhaps fewer than 100 members of al-Qaeda remained in Afghanistan.[194]

In the summer of 2008, President Bush issued an order authorizing raids against militants in Pakistan. Pakistan said it would not allow foreign forces onto its territory and that it would vigorously protect its sovereignty.[195] In September, the Pakistan military stated that it had issued orders to "open fire" on US soldiers who crossed the border in pursuit of militant forces.[196]

In September 2008, President Bush announced the withdrawal of over 8,000 from Iraq and a further increase of up to 4,500 in Afghanistan.[197] The same month, the UK lost its 100th serviceperson.[198]

On 3 September 2008, US commandos landed by helicopter and attacked three houses close to a known enemy stronghold in Pakistan. Pakistan condemned the attack, calling the incursion "a gross violation of Pakistan's territory."

use of remotely piloted drone aircraft in Pakistan's border regions, in particular the Federal Tribal Areas and Balochistan; by 2009, drone attacks were up 183% since 2006.[203]

By 2009 there was broad agreement in Afghanistan that the war should end, but how it should happen was a major issue for the candidates of the

Obama administration's increase of American troops in the country.[206] Karzai reiterated at a London conference in January 2010 that he wanted to reach out to the Taliban to lay down arms.[207] US Secretary of State Hillary Clinton cautiously supported the proposal.[208]

Development of ISAF troop strength
A US soldier and an Afghan interpreter in Zabul, 2009

January 2009 brought a change in American leadership, with the election of President

counterinsurgency strategy would require 500,000 troops and five years.[212]

Pakistani drone strikes against Taliban and al-Qaeda militants increased substantially under President Obama.

Tehrik-i-Taliban Pakistan was killed in a drone strike.[216]

June 2009 brought Operation Strike of the Sword in Helmand.[217] It followed a British-led operation named Operation Panther's Claw in the same region, which was aimed to secure various canal and river crossings to establish a long-term ISAF presence.[218]

On 4 September 2009, during the

Kunduz Province Campaign a devastating NATO air raid was conducted 7 kilometers southwest of Kunduz, where Taliban fighters had hijacked civilian supply trucks, killing up to 179 people, including over 100 civilians.[219]

Russian made Mil Mi-8 chopper landing at Forward Operating Base Airborne to deliver mail and supplies, 2009

After Karzai's alleged win of 54 percent in 2009, which would prevent a runoff, over 400,000 Karzai votes had to be disallowed after accusations of fraud. Some nations criticized the elections as "free but not fair."[220][221] The Taliban's claim that the over 135 violent incidents disrupted elections was largely disputed. However, the media was asked to not report any violent incidents.[222] In southern Afghanistan where the Taliban held the most power, voter turnout was low and sporadic violence was directed at voters and security personnel.[223] The Taliban released a video days after the elections, filming on the road between Kabul and Kandahar, stopping vehicles and asking to see their fingers (voters were marked by dipping their fingers in ink so they could not double vote). The video went showed ten men who had voted, listening to a Taliban militant. The Taliban pardoned the voters because of Ramadan.[224] The Taliban attacked towns with rockets and other indirect fire. Amid claims of widespread fraud, both top contenders, Hamid Karzai and Abdullah Abdullah, claimed victory. Reports suggested that turnout was lower than in the prior election.[221] On 26 November, Karzai made a public plea for direct negotiations with the Taliban leadershi, saying there was an "urgent need" for negotiations and made it clear that the Obama administration had opposed such talks. There was no formal US response.[225][226]

In December 2009, an

drone attacks against Taliban leaders, killed eight working for the CIA.[227]

On 1 December 2009, Obama announced that the US would send 30,000 more troops.[228] Antiwar organizations in the US responded quickly, and cities throughout the US saw protests on 2 December.[229] Many protesters compared the decision to deploy more troops in Afghanistan to the expansion of the Vietnam War under the Johnson administration.[230]

2010–2011: Strategic agreements and death of Bin Laden

Regiment stop on a road while conducting a combat mission near Kandahar Airfield, 2010

Deployment of additional US troops continued in early 2010, with 9,000 of the planned 30,000 in place before the end of March and another 18,000 expected by June.[231] The surge in troops supported a sixfold increase in Special Forces operations.[232] The surge of American personnel that began in late 2009 ended by September 2012.[233] 700 airstrikes occurred in September 2010 alone versus 257 in all of 2009.[234]

Due to increased use of IEDs by insurgents, the number of injured Coalition soldiers, mainly Americans, significantly increased.[235] Beginning in May 2010 NATO special forces began to concentrate on operations to capture or kill specific Taliban leaders. As of March 2011, the US military claimed that the effort had resulted in the capture or killing of more than 900 low- to mid-level Taliban commanders.[236][237] Overall, 2010 saw the most insurgent attacks of any year since the war began, peaking in September at more than 1,500.[238]

In February 2010, Coalition and Afghan forces began highly visible plans for an offensive, codenamed Operation Moshtarak, on a Taliban stronghold near the village of Marjah.[239]

The

Pakistani intelligence community was opposed to Afghan peace talks.[241][242] Karzai started peace talks with Haqqani-network groups in March.[243]

In 2010, a mindset change and strategy occurred within the

Quetta Shura") had left their haven in Pakistan and been safely escorted to Kabul by NATO aircraft for talks, with the assurance that NATO staff would not apprehend them.[245] After the talks concluded, it emerged that the leader of this delegation, who claimed to be Akhtar Mansour, the second-in-command of the Taliban, was actually an imposter who had duped NATO officials.[246]

On 25 July 2010, the

Coalition Forces. The reports included many references to other incidents involving civilian casualties like the Kunduz airstrike and Nangar Khel incident.[248] The leaked documents also contain reports of Pakistan collusion with the Taliban. According to Der Spiegel, "the documents clearly show that the Pakistani intelligence agency Inter-Services Intelligence (usually known as the ISI) is the most important accomplice the Taliban has outside of Afghanistan."[249]

An Australian service light armored vehicle drives through Tangi Valley
, 2011

On 2 May 2011, US officials announced that Al-Qaeda leader Osama bin Laden had been killed in

Navy SEALs, in Abbottabad, Pakistan.[250] Pakistan came under intense international scrutiny after the raid. The Pakistani government denied that it had sheltered bin Laden, and said it had shared information with the CIA and other intelligence agencies about the compound since 2009.[251]

The 2011 Battle of Kandahar was part of an offensive that followed a 30 April announcement that the Taliban would launch their spring offensive.[252] On 7 May, the Taliban launched a major offensive on government buildings in Kandahar.[253] The BBC called it "the worst attack in Kandahar province since the fall of the Taliban government, and an embarrassment for the [Afghan] government."[254]

Karzai confirmed in June 2011 that secret talks were taking place between the US and the Taliban,[255] but these collapsed by August.[256]

On 22 June 2011, President Obama announced that 10,000 troops would be withdrawn by the end of the year, and an additional 23,000 troops would return by the summer of 2012. After the withdrawal of 10,000 US troops, only 80,000 remained.[257] In July 2011 Canada withdrew its combat troops, transitioning to a training role. Following suit, other NATO countries announced troop reductions.[citation needed] Taliban attacks continued at the same rate as they did in 2011, around 28,000 in 2013.[258]

A German Bundeswehr soldier, part of ISAF's Regional Command North at Camp Marmal, 2011

Tensions between Pakistan and the US were heightened in late September 2011 after several Pakistan Frontier Corps soldiers were killed and wounded. The troops were attacked by a US piloted aircraft that was pursuing Taliban forces near the Afghan-Pakistan border, but for unknown reasons opened fire on two Pakistan border posts. In retaliation for the strike, Pakistan closed the Torkham ground border crossing to NATO supply convoys for an unspecified period. This incident followed the release of a video allegedly showing uniformed Pakistan soldiers executing unarmed civilians.[259] After the Torkham border closing, Pakistani Taliban attacked NATO convoys, killing several drivers and destroying around 100 tankers.[260] ISAF forces skirmished Pakistan's armed forces on 26 November, killing 24 Pakistani soldiers. Each side claimed the other shot first. Pakistan blocked NATO supply lines and ordered Americans to leave Shamsi Airfield.[261][262]

2012-2013: U.S. troop incidents, Obama-Karzai meetings

After signing the agreement with the United States, the Taliban resumed offensive operations against the Afghan army and police on 3 March, conducting attacks in Kunduz and Helmand provinces.

Sikh worshippers in Kabul on 25 March,[420] and a series of attacks in May most notably killing 16 mothers and newborn babies in Kabul.[421]

On the diplomatic front, on 31 March 2020 a three-person Taliban delegation arrived in Kabul to discuss the release of prisoners,[422][423] the first Taliban representatives to visit Kabul since 2001.[422] On 7 April, the Taliban departed from the prisoner swap talks, which Taliban spokesman Suhail Shaheen said was unsuccessful.[424][425] Shaheen also stated in a tweet that hours after walking out of the talks, the Taliban's negotiating team was recalled from Kabul.[425] The Taliban failed to secure the release of any of the 15 commanders they sought to be released.[424] Arguments over which prisoners to swap resulted in a delay of the planned prisoner swap.[424] After a long delay due to disputes regarding prisoners' releases, the Afghan government had by August released 5,100 prisoners,[426] and the Taliban had released 1,000.[427] However, the Afghan government refused to release 400 prisoners from the list of those the Taliban wanted to be released, because those 400 were accused of serious crimes.[428] President Ghani stated that he did not have the constitutional authority to release them, so he convened a loya jirga from 7 to 9 August to discuss the issue.[429] The jirga agreed to free the 400 remaining prisoners.[428] Talks between the Afghan government and the Taliban began in Doha on 12 September.[430]

On 22 June, Afghanistan reported its "bloodiest week in 19 years", during which 291 members of the

Afghan National Defense and Security Forces (ANDSF) were killed and 550 others wounded in 422 attacks carried out by the Taliban. At least 42 civilians, including women and children, were also killed and 105 others wounded.[431] During the week, the Taliban kidnapped 60 civilians in the central province of Daykundi.[432]

2021: End of US withdrawal, last Taliban offensive

The Taliban insurgency

withdrawal of United States and allied troops from Afghanistan.[433] Since the US withdrawal, the number of casualties of women in the Afghanistan conflict rose by almost 40% in the first quarter of 2021 alone.[434]

On March 6, Afghanistan's President Ghani expressed that his government would be taking forward peace talks with the Taliban, discussing with the insurgent group about holding fresh elections and forming a government in a democratic manner.

Biden administration announced that it would withdraw its remaining 2,500 troops from Afghanistan by September 11, on the twentieth anniversary of the September 11 attacks.[436] The US government also reiterated support for the Afghan government regarding a possible Taliban military victory.[437]

A map of Afghanistan showing the 2021 Taliban offensive

The Taliban began its last major offensive on 1 May, culminating in the fall of Kabul, a Taliban victory, and the end of war.[438][439][440] In the first three months of the offensive, the Taliban made significant territorial gains in the countryside, increasing the number of districts it controlled from 73 to 223.[441]

On July 5, the Taliban announced their intention to present a written peace plan to the

Presidential Palace after the incumbent President Ashraf Ghani fled the country to Tajikistan.[445][446] NATO forces maintain a presence in Kabul.[446][447]

The Taliban gained control of various towns throughout June and July. On 6 August, they captured the first provincial capital of Zaranj. Over the next ten days, they swept across the country, capturing capital after capital. On 14 August, Mazar-i-Sharif was captured as commanders Rashid Dostum and Atta Nur fled across the border to Uzbekistan, cutting Kabul's vital northern supply route.[448]

Taliban fighters in Kabul, 17 August 2021

On 15 August, Jalalabad fell, cutting the only remaining international route through the Khyber Pass.[448] By noon, Taliban forces advanced from the Paghman district reaching the gates of Kabul; Ghani discussed the city's protection with security ministers, while sources claimed a unity peace agreement with the Taliban was imminent. However, Ghani was unable to reach top officials in the interior and defense ministries, and several high-profile politicians had already hurried to the airport. By 2 p.m., the Taliban had entered the city facing no resistance; the president soon fled by helicopter from the Presidential Palace, and within hours Taliban fighters were pictured sitting at Ghani's desk in the palace.[449] With the virtual collapse of the republic, the war was declared over by the Taliban on the same day.[450]

As the Taliban seized control, the need to evacuate populations vulnerable to the Taliban, including the interpreters and assistants who had worked with the coalition forces, ethnic minorities, and women, became urgent. For more than two weeks, international diplomatic, military and civilian staff, as well as Afghan civilians, were

Hamid Karzai International Airport. On 16 August Major General Hank Taylor confirmed that US air strikes had ended at least 24 hours earlier and that the focus of the US military at that point was maintaining security at the airport as evacuations continued.[451] The final flight, a US Air Force C-17, departed at 3:29 p.m. ET, 11:59 p.m. in Kabul time, on 30 August, marking the end of the American campaign in Afghanistan.[452] Many observers have noted this as the end of America's longest war in history.[87][453][454][455]

Impact

Casualties