Timeline of the war in Afghanistan

Published On: Jun 18 2013 11:36:52 AM CDT   Updated On: Sep 30 2014 07:13:23 AM CDT

A new security agreement keeping U.S. troops in Afghanistan past this year marks yet another chapter in the longest conflict in U.S. history.

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Department of Defense

April 22, 2004 -- Former NFL star Pat Tillman is killed in a friendly fire incident during a firefight with hostile forces in Sperah, Afghanistan. The Army first reported that Tillman had been killed by enemy fire, and then Lt. Gen. Stanley A. McChrystal approved the award of a Silver Star.

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