"We do not want to talk to anyone - not to [President Hamid] Karzai, nor to any foreigners - till the foreign forces withdraw from Afghanistan.
"We are certain that we are winning. Why should we talk if we have the upper hand, and the foreign troops are considering withdrawal, and there are differences in the ranks of our enemies?"
From its inception, and now, nearly 9 years on, this war is unwinnable from a military perspective.
Iraq is not Afghanistan, and I rather doubt that Petraeus will actually be able to "...change the widespread perception that the war..." here is unwinnable.
One has to ask oneself, after all the blood and money spent, how the US and NATO will ultimately measure "victory" here.