They certainly didn't. But then, these people still hold a grudge against us because of the Crusades. And bear in mind that these 2 wars followed decades of plane hijacking, embassy attacks, abductions, beheading, suicide-bombings. Non-muslims as Jihad targets have been extremely patient and extremely tolerant towards muslims. Remember that Saddam Hussein threw chemicals bombs on his own people. Remember that Afghanistan was harbouring Al-Qaida, held responsible for the WTC. There was no war at the time of 9/11. With or without war, the Islam's fundamental religious dogma calls for the killing of non-muslims wherever they are. It was Mr George Bush who was right when he said it was better to fight the terrorists in their homeland than ours.