We've been fighting there for seven and a half years. Isn't honor served by now?
And who are we fighting? More and more it looks like we're just fighting the Pashtun people, of whom the Taliban are a political expression. There are something like 40 million Pashtuns in Afghanistan and Pakistan, and they like to fight. It's what they do.
The Pashtun are disagreeable bad-tempered back-stabbers. But, they live there. And we don't.