Later my reservations on Afghanistan were raised by various books and articles, but there was never a clear decision point where politicians debated the issues. And there was never a clear course, a way to reconcile my liberal desires for nation-building and women's rights and my doubts over the effectiveness of our strategies.
Now the Post is publishing the Afghanistan equivalent of the Pentagon Papers, documents from a "lessons learned" exercise by the special IG for the war.
My bottom line, not having read the whole series yet, is this: most of the criticisms were valid, but it's one-sided, no answer to the question: "what was the alternative?"
I can only add this perspective: looking at Vietnam today and the status of US-Vietnam relations, the war didn't have lasting bad effects at the global level. When you consider the deaths and injuries, particularly of Vietnamese, and destruction resulting from the 1945-75 conflict you have to deplore it.