The conflict in Afghanistan — for the US at least — appears to be over. Essentially admitting defeat, American planes are beating a hasty and ignominious retreat from Kabul, with images of the withdrawal bearing a striking resemblance to those from the fall of Saigon 46 years previously. As the Taliban complete their takeover, many Americans are wondering what it was all about. For what, and on what, did the United States spend more than $2 trillion? A newly published study from the Special...



















