Al-Jazeera Video: US military base under Taliban control

"Known to US soldiers as the Valley of Death, it's been the scene of the some of the most intense fighting in the war in Afghanistan.

After years of intense fighting, the US has left its remote outpost in the Korengal Valley, in the country's east.

Al Jazeera's James Bays has more on the move, which the US calls a re-positioning of forces, but which the Taliban has declared a US defeat. "