The problems in Afghanistan often feel intractable, like a knot of countless ropes bound together. Every time a strand is pulled, another part of the knot tightens up. Currently, the Taliban refuse to have talks with the Afghan government, which they label a puppet regime; the Kabul government insists that any power-sharing agreement allow limited numbers of Western troops to remain; the Pakistanis, who have long sheltered Taliban leaders, are unwilling to fully encourage a peace settlement; the US and its NATO partners are sick of war and want out; the Russians play a complex double game, sometimes encouraging the