UN special envoy, Deborah Lyons told the Security Council that the insurgents have taken more than fifty of the three hundred and seventy districts since May, warning of dire scenarios.
She said increased conflict means increased insecurity for many other countries, near and far.
The US and Nato are still aiming for a complete troop pullout by 11 September but Pentagon spokesman, John Kirby said the situation remained dynamic and although the Taliban gains had not changed the withdrawal, there was still the flexibility to alter its pace and scope.
