The withdrawal of US troops from Afghanistan after almost 20 years on the ground has stoked fears of a resurgence of the Taliban.
They have reportedly seized one district after another in recent days, overrunning bases housing Afghan government troops.

Experts are also concerned that the US withdrawal also gives al-Qaeda an opportunity to rebuild its network and once again be able to plot attacks around the world.
We speak to Prof Paul Cornish, visiting professor at LSE Ideas, London School of Economics, an Associate Fellow at the Council on Geostrategy, and a specialist on Afghanistan.