In November 2001 Northern alliance back up by the US-led coalition forces captured the city of Kabul and with the capture of Kabul Taliban forces surrender power and Bin laden was on run.
This whole occurs when the United State forces began their strikes against the Taliban in October 2001. United States attacked with his coalition forces which include Britain, Australia, Canada, and Northern alliance.
After the massive attack on the Kabul by the US-led coalition has started a few days later only the Taliban abandoned the capital Kabul and the Northern alliance back up by the US forces gained control over Kabul and a new democratic government was set up.