and without an economic motivation!

It's much more religious and philosophical for these fundamentalist Islamic lunatics.

http://www.terrorismfiles.org/organisations/al_qaida.html

Description

Established by Usama Bin Ladin in the late 1980s to bring together Arabs who fought in Afghanistan against the Soviet invasion. Helped finance, recruit, transport, and train Sunni Islamic extremists for the Afghan resistance. Current goal is to establish a pan-Islamic Caliphate throughout the world by working with allied Islamic extremist groups to overthrow regimes it deems "non-Islamic" and expelling Westerners and non-Muslims from Muslim countries. Issued statement under banner of "the World Islamic Front for Jihad Against the Jews and Crusaders" in February 1998, saying it was the duty of all Muslims to kill US citizens--civilian or military--and their allies everywhere.

Saddam Hussein's agression may indeed be more rooted in economic motives, however. After all, he did try to steal Kuwait and 1/3 of the world's oil supply in the Gulf region 10 years ago. Good thing many nations banded together to stop him. Too bad we didn't finish he job...