From: CBS

Ten years ago this week, U.S. forces went to war in Afghanistan to root out the terrorists who attacked America on 9/11, and to topple the Taliban government that gave them safe haven.

That’s been done, but Taliban insurgents – using Pakistan as a base – fight on, and the top U.S. general in Afghanistan says that the U.S. troops will remain there for a “long time,” likely far beyond a planned 2014 handover of security responsiblity.