Explain to Me Again?

Explain to me again, why we are in Afghanistan? I am a little dense you know! As I understand it, they did not cause 9-11 and neither did Iraq…

So explain to me again why we are killing their people???

At least 18 Afghan civilians, including seven children, were killed early Wednesday morning after US special operations troops called in an air strike on their homes.
Explain to me again???
Kyle Keeton