It might come as a surprise, but the United States and Afghanistan enjoyed friendly relations for the overwhelming majority of their shared history, a history spanning some 200 years. It was only following September 11, 2001, that relations soured between the two countries. In the days that followed the terror attacks of September 11, the American government demanded the Taliban deliver Osama bin Laden or face the wrath of the U.S. military – and the Afghans almost avoided a war. The Strategic...