It's kind of impossible to talk about the war without keeping in mind how it went prior to the current moment and who was responsible for how it went, just as it's impossible to complain about Pres. Obama's budget without noting that Pres. Bush never included the cost of the two wars in his budgets in order to make them look smaller and more reasonable, instead going to Congress repeatedly to appropriate "emergency funds" to run the wars several times a year over the course of his presidency.
As far as sending more of our troops to Afghanistan... I think we're going down the same road the old Soviet Union did, and setting ourselves up for similar disastrous results. I'm not sure this war can ever be "won" by conventional warfare, and in my opinion instead of trying to force democracy on a people who don't like it and don't want it, we should have found another puppet strong-arm dictator who would run the country for us in a way we were comfortable with, sans democracy, as corrupt as they make them over there, allowing us to completely withdraw troops and still maintain control.
No, it wouldn't last forever, but nothing does in that region, and it would have saved us thousands of lives and trillions in debt, and we could have bowed out gracefully with the ability to come back strong later on if needed. Now we're just stuck.
_________________________
Helice ~~~ (Nemo me impune lacesset.)
It is better to be a human being dissatisfied than a pig satisfied;
better to be Socrates dissatisfied than a fool satisfied.
And if the fool, or the pig, are a different opinion,
it is because they only know their own side of the question.
The other party to the comparison knows both sides.
--John Stuart Mill, UTILITARIANISM, 1863