Afganistan was the rush to decline for the old Soviet Union. Looks like history repeating itself again. We didn't learn anything from the French occupation of Viet Nam either.
In the Abab countries they have been killing each other over religious beliefs for thousands of years and will still be doing that long after we pull our troops out.
I think the idea of pulling out our troops and letting those who support these "wars" take thier place. On thier own dime of course.