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| U.S. intervention in Afghanistan | |
|---|---|
| Name | U.S. intervention in Afghanistan |
| Caption | U.S. involvement in Afghanistan (2001–2021) |
| Location | Afghanistan |
| Date | 2001–2021 |
| Result | NATO-led operations, establishment of Islamic Republic of Afghanistan, eventual Fall of Kabul |
U.S. intervention in Afghanistan was a prolonged military, political, and diplomatic engagement by the United States and its partners in Afghanistan following the September 11 attacks of 2001. It encompassed the 2001 invasion, a multi-year counterinsurgency campaign, nation-building efforts, a strategic troop surge and drawdown, negotiations with the Taliban, and the 2021 withdrawal that culminated in the Fall of Kabul. The intervention involved actors such as NATO, CENTCOM, ISAF, and regional states including Pakistan, Iran, and India.
U.S. action was precipitated by the September 11 attacks attributed to Al-Qaeda leaders including Osama bin Laden and operational planners such as Khalid Sheikh Mohammed. The Taliban regime in Afghanistan had provided sanctuary to Al-Qaeda and maintained ties to Islamist militants implicated in attacks like the 1998 United States embassy bombings. U.S. policymaking involved officials from Department of Defense, CIA, and the National Security Council who cited principles in the Authorization for Use of Military Force and invoked precedents from the Gulf War and War on Terror. Regional dynamics featured Pakistan's Inter-Services Intelligence, the Northern Alliance under leaders such as Ahmed Shah Massoud and Hamid Karzai, and influences from Saudi Arabia and Iran.
The initial campaign, launched as Operation Enduring Freedom, combined U.S. airpower from platforms associated with United States Air Force and United States Navy assets, special operations forces including Delta Force and Navy SEALs, and support for the Northern Alliance. Key early events included the Battle of Tora Bora and the capture of Kandahar by anti-Taliban coalitions. NATO invoked Article 5 after September 11 attacks, leading to the deployment of the International Security Assistance Force under leaders from countries like United Kingdom, Canada, and Germany. Early successes disrupted Al-Qaeda networks but left insurgent elements intact, prompting debates within bodies like the United States Congress and among figures such as Donald Rumsfeld and Colin Powell.
Following initial combat, U.S. and allied efforts shifted toward counterinsurgency, reconstruction, and institution-building under frameworks informed by doctrines from FM 3-24 and advisers associated with schools like Harvard Kennedy School and U.S. Army War College. Programs included training of the Afghan National Army and Afghan National Police, infrastructure projects funded by entities such as USAID and overseen by contractors like KBR and DynCorp. Major political milestones involved the Bonn Agreement (2001), the 2004 election that inaugurated Hamid Karzai, and the 2009 presidential contest adjudicated by the United Nations Assistance Mission in Afghanistan. Combat operations intersected with battles such as Battle of Marjah and sustained action in provinces like Helmand Province and Kunar Province.
The Obama administration authorized a troop surge led by commanders including General Stanley McChrystal and General David Petraeus, aiming to implement counterinsurgency in pop-centric operations across districts like Marjah and Laghman Province. Subsequent drawdowns were influenced by strategic reviews, budget debates in the United States Congress, and shifting public opinion shaped by media outlets and think tanks such as the Brookings Institution and RAND Corporation. During this period the Taliban reorganized, senior figures like Mullah Omar became focal points, and new groups such as the Haqqani network maintained cross-border sanctuaries. NATO transitioned to Resolute Support Mission to advise and assist Afghan forces while incidents like the Kabul hospital attack and the Helmand campaign demonstrated persistent insecurity.
Diplomatic initiatives culminated in bilateral talks between U.S. negotiators including envoys like Zalmay Khalilzad and Taliban representatives in venues such as Doha, Qatar. The negotiations produced the U.S.–Taliban agreement which set conditions for U.S. withdrawal, prisoner exchanges, and counterterrorism assurances while excluding the Afghan government from direct accord. International actors including China, Russia, and Turkey observed or engaged with the process. The agreement faced criticism from politicians such as John McCain and activists linked to organizations like Human Rights Watch and Amnesty International.
The Biden administration announced a full military withdrawal timed to the twentieth anniversary of September 11 attacks, executing a rapid redeployment of forces and contractors from bases such as Bagram Airfield. The withdrawal coincided with a swift offensive by the Taliban that resulted in the Fall of Kabul and the collapse of institutions associated with the Islamic Republic of Afghanistan (2004–2021). Evacuation operations involved Operation Allies Refuge, carrier operations by United States Navy and airlift by United States Air Force assets, with coordination challenges noted by committees in the United States House of Representatives and United States Senate. The events prompted international responses from United Nations, European Union, and regional capitals like Islamabad and New Delhi.
Two decades of conflict produced displacement addressed by agencies such as the United Nations High Commissioner for Refugees and humanitarian actors including International Committee of the Red Cross. Civilian casualties were documented by organizations like United Nations Assistance Mission in Afghanistan and Amnesty International, with crises in health institutions like those supported by World Health Organization and education initiatives involving UNICEF. Economic effects touched sectors monitored by the World Bank, while illicit economies involving opium cultivation and narcotics trafficking affected regions tied to networks in Helmand Province and Nangarhar Province. Refugee movements influenced policies in countries like Pakistan, Iran, and Germany.
The intervention generated debates over legality referencing instruments such as the AUMF and principles in UN Charter. U.S. domestic disputes involved administrations from George W. Bush to Barack Obama to Donald Trump and Joe Biden, Congress oversight, and litigation involving entities like ACLU. Strategically, analyses in journals associated with Council on Foreign Relations and Foreign Affairs debated nation-building, counterinsurgency doctrine, and great-power competition involving China and Russia. The legacy influenced policy on drone operations linked to MQ-9 Reaper deployments, detention practices exemplified by Guantanamo Bay, and lessons for future interventions discussed at institutions such as West Point and NATO Defense College.