After the 9/11 attacks in the United States Hekmatyar, who had allegedly "worked closely" with bin Laden in early 1990s, declared his opposition to the US campaign in Afghanistan and criticized Pakistan for assisting the United States. After the U.S. entry into the anti-Taliban alliance and the fall of the Taliban, Hekmatyar rejected the U.N.-brokered accord of 5 December 2001 negotiated in Germany as a post-Taliban interim government for Afghanistan. As a result of pressure by the U.S. and the Karzai administration, on 10 February 2002 all the offices of Hezb-e-Islami were closed in Iran and Hekmatyar was expelled by his Iranian hosts.