Consider what bin Laden said about the importance of the war in Iraq in December 2004:
"I now address my speech to the whole of the Islamic nation: Listen and understand. The issue is big and the misfortune is momentous. The most important and serious issue today for the whole world is this Third World War, which the Crusader-Zionist coalition began against the Islamic nation. It is raging in the land of the two rivers. The world's millstone and pillar is in Baghdad, the capital of the caliphate.
The whole world is watching this war and the two adversaries; the Islamic nation, on the one hand, and the United States and its allies on the other. It is either victory and glory or misery and humiliation. The nation today has a very rare opportunity to come out of the subservience and enslavement to the West and to smash the chains with which the Crusaders have fettered it."
I thought Saddam Hussein was a secular ruler and hated by Bin Laden.