NEW : Afghanistan 's National Security Council says there is no place for violence during talks . US - led troops transfer the responsibility to Afghan authorities . Questions remain about whether Afghan troops are up to the task . There are fears the country could revert back to civil war .
NEW : Afghanistan 's High Peace Council says there is no place for violence during talks . NATO-led troops transfer security responsibility to Afghan forces . Doubts remain about whether Afghan troops are up to the task . There are fears the country could revert back to civil war .