Participants in Operation Enduring Freedom

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Following the terrorist attacks of September 11, 2001, several nations took on Al-Qaeda and the Taliban during Operation Enduring Freedom (OEF) in Afghanistan. OEF 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 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 were deployed both in the OEF and ISAF.