These later expatriate volunteers included many sectarian Salafi and Wahhabi who alienated their hosts with their aloof manner and disdain for the Sufi Islam practiced by most Afghans. While the first Arab Afghans were "for the most part" welcomed by native Afghan mujahideen, by the end of the Soviet-Afghan war, there was a great deal of mutual antagonism between the two groups. The Afghan mujahideen resented "being told they were not good Muslims" and called the expatriate volunteers "Ikhwanis" or "Wahhabis", and this resentment is thought by some (Marc Sageman) to have played a role in the relatively easy manner in which the U.S. overthrew the (also very strict) Taliban in 2001.