The Taliban have swept through Afghanistan with remarkable speed.
But as they sit in Kabul planning their new government, there remains a large thorn in their side: a small valley of anti-Taliban resistance just north-east of the capital, refusing to give up despite being entirely surrounded.
Senior Taliban leader Amir Khan Motaqi has called on the residents of the Panjshir Valley to lay down their weapons, but there is little sign of them complying. Dozens of Taliban fighters are said to have been killed in skirmishes along its borders since 15 August, when Kabul fell, and fighting is continuing.
So what exactly is happening in the Panjshir Valley – and should the Taliban be worried?
Who are the resistance fighters?
The valley in eastern Afghanistan has become the home of the National Resistance Front (NRF), a multi-ethnic group made up of militias and former Afghan security force members, reportedly numbering in the thousands.
Photos released this week show what appears to be an organised, well-armed and well-trained group.