"At this point, they (the Taliban) are demanding that they take the lion's share of power in the next government, given the military situation as they see it," says special US envoy Zalmay Khalilzad in bleak assessment of Doha peace process.
Over 18 years after the war began, the accord sets the stage for US troop pullout from Afghanistan. If the deal is successful, the "graveyard of empires" will have once again successfully turned away another world power from its landlocked borders.