Invasion (2001): Northern Alliance United States United Kingdom Canada RS phase (2015–2021): 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] 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] 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 ContractorsDead: 3,917[58][69][70]Wounded: 15,000+[69][70] Taliban insurgents:52,893 killed[58] (2,000+ al-Qaeda fighters)[53] Civilians killed: 70,000[71] Total killed: 176,206 (per Brown University)[72]212,191+ (per UCDP)[73] a The continued list includes nations who have contributed fewer than 200 troops as of November 2014.

[74] Timeline Major operations Airstrikes Major insurgent attacks 2002 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 Massacres Other The following items form a partial timeline of the War in Afghanistan.

For events prior to October 7, 2001, see 2001 in Afghanistan.

The army of the United States continues to conduct missions throughout Afghanistan, began closing forward operating bases (FOB).