"War of Attrition": 'It didn't work in Vietnam, & it's not working in Afghanistan'

"... In the Vietnam years, Westmoreland and other top U.S. officials were forever seeking an elusive "crossover point" — the moment when their Vietnamese foes would be losing more fighters than they could replace and so would have to capitulate. America would win by fighting a war of attrition.

But that didn't work in Vietnam, and it's not working in Afghanistan... ...   As in Vietnam, the United States is once again betting on a war of attrition. But the enemy hasn't bought in. Instead of slugging it out toe to toe, in large suicidal offensives, the Haqqanis and their allies have planned a savvy, conservative campaign meant to save fighters and resources while sending an unmistakable message to the Afghan population and the American public.

The attrition of U.S. support for the war is unmistakable. As late as 2009, according to a poll by ABC News and the Washington Post, 56% of Americans believed the Afghan war was still worth fighting. Just days before the Haqqanis' coordinated attacks, that number had dropped to 35%. Over the same span, the number of Americans who are convinced the war is not worth fighting jumped from 41% to 60%. The latest Haqqani offensive is likely to reinforce these trends."