On 9 September 2001 , just two days before the September 11 attacks in the United States , Massoud was assassinated by two suicide bombers , probably at the instigation of al-Qaeda . Immediately afterwards Taliban forces launched a major offensive against United Front positions . Mohammed Qasim Fahim was chosen to succeed Massoud as leader of Jamiat 's military wing and repulsed the Taliban offensive . With extensive assistance from an American-led coalition in October and November 2001 ( see War in Afghanistan ( 2001 – present ) ) , United Front forces recaptured most of Afghanistan
September 11 attacks
September 11 attacks
Jamiat-e Islami