Different situation entirely. Vietnam was an attempt to prop up a post-colonial government nobody wanted. Iraq’s current woes are, first of all, the result of destroying a functioning (if corrupt) government that was in place and, second, a crisis of a non-representative minority force that the mass of Iraqi people do not support. .I think we need to let the chips fall, I don’t want to see us sacrifice more of our young people for neocon dreams, but the comparison doesn’t hold. This is not your grandfather’s war.