Two decades ago, young people in Kandahar were telling me how the proxy militias American forces had armed and provided with U.S. fatigues were shaking them down at checkpoints. By 2007, delegations of elders would visit me — the only American whose door was open and who spoke Pashtu so there would be no intermediaries to distort or report their words. Over candied almonds and glasses of green tea, they would get to some version of this: “The Taliban hit us on this cheek, and the government hits us on that cheek.” The old man serving as the group’s spokesman would physically smack himself in the face.

I and too many other people to count spent years of our lives trying to convince U.S. decision-makers that Afghans could not be expected to take risks on behalf of a government that was as hostile to their interests as the Taliban were. Note: it took me a while, and plenty of my own mistakes, to come to that realization. But I did.

For two decades, American leadership on the ground and in Washington proved unable to take in this simple message. I finally stopped trying to get it across when, in 2011, an interagency process reached the decision that the U.S. would not address corruption in Afghanistan. It was now explicit policy to ignore one of the two factors that would determine the fate of all our efforts. That’s when I knew today was inevitable.