For bin Laden:

We’re floundering in a quagmire in Iraq. Our strategy is flawed, and it’s too late to change it. Our resources have been squandered, our best people killed, we’re hated by the natives and our reputation around the world is circling the drain. We must withdraw.
No, I’m not channeling Senate Majority Leader Harry Reid. I’m channeling Osama bin Laden, for whom the war in Iraq has been a catastrophe. Al-Qaida had little presence in Iraq during the regime of Saddam Hussein. But once he was toppled, al-Qaida’s chieftains decided to make Iraq the central front in the global jihad against the Great Satan.
“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,” Osama bin Laden said in an audiotape posted on Islamic Web sites in December 2004. “It is raging in the land of the Two Rivers. The world’s millstone and pillar is Baghdad, the capital of the caliphate.”
Jihadis, money and weapons were poured into Iraq. All for naught. Al-Qaida has been driven from every neighborhood in Baghdad, Maj. Gen. Joseph Fil, the U.S. commander there, said Nov. 7. This follows the expulsion of al-Qaida from two previous “capitals” of its Islamic Republic of Iraq, Ramadi and Baquba.
Al-Qaida is evacuating populated areas and is trying to establish hideouts in the Hamrin mountains in northern Iraq, with U.S. and Iraqi security forces, and former insurgent allies who have turned on them, in hot pursuit. Forty-five al-Qaida leaders were killed or captured in October alone.
Al-Qaida’s support in the Muslim world has plummeted, partly because of the terror group’s lack of success in Iraq, more because al-Qaida’s attacks have mostly killed Muslim civilians.
“Iraq has proved to be the graveyard, not just of many al-Qaida operatives, but of the organization’s reputation as a defender of Islam,” said StrategyPage.
Canadian columnist David Warren speculated some years ago that enticing al-Qaida to fight there was one of the reasons why President Bush decided to invade Iraq. The administration has made so many egregious mistakes that I doubt the “flypaper” strategy was deliberate. But it has worked out that way. It may have been a mistake for the United States to go to war in Iraq. But it’s pretty clear now it was a blunder for al-Qaida to have done so.