Fifty Percent Success after Ten Years

From the AP:

On the 10th anniversary of the American war in Afghanistan, the former top U.S. military commander in the war said the United States and its allies are only "50 percent of the way" toward achieving their goals.

American military commanders have repeatedly sought over the past decade to "put time on the Washington clock," as retired General David Petraeus once put it, by describing the progress their forces made in the counterinsurgency campaign.

However, Petraeus' predecessor as the top commander in Afghanistan, retired General Stanley McChrystal, sharply broke with that message Thursday in bracing remarks to the Council on Foreign Relations.

"We didn't know enough and we still don't know enough," McChrystal said. . . . "Most of us, me included, had a very superficial understanding of the situation and history, and we had a frighteningly simplistic view of recent history, the last 50 years."

Hey, another ten years and another trillion dollars and we might reach our goals! Wait-- what, exactly, are our goals?