Participants in Operation Enduring Freedom

Following the terrorist attacks of September 11, 2001, several nations took on Al-Qaeda and the Taliban during Operation Enduring Freedom in Afghanistan, which was the initial combat operations starting on 7 October 2001, in the wake of the 11 September attacks on the United States, and during 2002 and 2003.

This list covers US and coalition forces and other forms of support for Operation Enduring Freedom (OEF) from October 2001. Some nations operations in Afghanistan continued as part of NATO's International Security Assistance Force (ISAF). For example, United States troops are deployed both in the OEF and ISAF.

See the article Afghanistan War order of battle for the current disposition of coalition forces in Afghanistan.

For coalition forces involved in NATO International Security Assistance Force (ISAF) combat operations in southern Afghanistan in 2006, see the article Coalition combat operations in Afghanistan in 2006. For coalition forces in Afghanistan in 2007, see the article Coalition combat operations in Afghanistan in 2007. For coalition forces in Afghanistan in 2008, see the article Coalition combat operations in Afghanistan in 2008. And the article International Security Assistance Force for coalition forces in Afghanistan as part of ISAF.

Afghan National Security Forces (ANSF) are currently trying to take an increasing role in battling the Taliban insurgency.

At their peak Australian troops in Afghanistan numbered 1,550. They were one of only three countries to openly support operations in Afghanistan at the war's beginning, along with the United States and the United Kingdom. Australian troops were deployed to Uruzgan province, while Special Forces personnel also operated in Afghanistan.

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