It can be tempting to look at the challenges in Iraq and conclude our best option is to pack up and go home. That may be satisfying in the short run, but I believe the consequences for American security would be devastating. If American forces were to step back from Baghdad before it is more secure, a contagion of violence could spill out across the entire country. In time, this violence could engulf the region. The terrorists could emerge from the chaos with a safe haven in Iraq to replace the one they had in Afghanistan, which they used to plan the attacks of September the 11th, 2001. For the safety of the American people, we cannot allow this to happen.
President Bush Discusses Fourth Anniversary of Operation Iraqi Freedom (March 19, 2007)