US soldiers fire artillery in Afghanistan's Kandahar province in June 2011. Operation Enduring Freedom was launched in October 2001 to stop the Taliban regime from providing a safe haven to al Qaeda and to stop al Qaeda's use of Afghanistan as a base of operations for terrorist activities.
Baz Ratner/Reuters

20 years in Afghanistan: America's longest war

Updated 2237 GMT (0637 HKT) August 16, 2021

US soldiers fire artillery in Afghanistan's Kandahar province in June 2011. Operation Enduring Freedom was launched in October 2001 to stop the Taliban regime from providing a safe haven to al Qaeda and to stop al Qaeda's use of Afghanistan as a base of operations for terrorist activities.
Baz Ratner/Reuters