US Secretary of State John Kerry said the US talks with the Taliban could ultimately lead to reconciliation but he was aware that it may not be possible.
He added that it remains to be seen whether the Taliban is ready to do its part for the Afghanistan peace process.
Official peace talks on Afghanistan between the United States and the Taliban were delayed today, amid a row about an office.
American negotiators will sit down with black turbaned men from the Taliban, at least one of whom speaks impeccable English.
Afghan president Hamid Karzai says his government will not take part in any peace talks involving the Taliban - at least for now.