"Rather than push for a realistic end to U.S. engagement, the Bush administration claims doomsday scenarios would become reality if a phased U.S. withdrawal began. Iraq, it says, would become a terrorist sanctuary, incite regional war or be the scene of sectarian genocide. These arguments are as faulty as those that led us into Iraq, and progressive leaders must push back. Strategic drift only forestalls the hard work needed to avoid these dangers."The real security problem in Iraq is a vicious power struggle among competing militias and factions. Foreign terrorists are mainly Sunni and represent only a small percentage of the problem. The Sunni foreign terrorists united with Sunni Iraqis are strongly opposed by Iraq's Shiites and Kurds. And in Anbar province, Sunni tribal leaders rose up against the pro-al-Qaeda Sunni elements well before the surge began. Drifting along the current path actually enhances the al-Qaeda narrative of America as an occupier of Muslim nations.
Similarly, the presence of a large U.S. combat force contributes to regional instability. Since the surge began, the number of internally displaced Iraqis has more than doubled. The U.N. High Commissioner for Refugees has said that more than 2 million Iraqis have left the country, and tens of thousands flee every day, often to squalid camps in Syria and Jordan.
As long as U.S. forces remain in Iraq in significant numbers, regional powers feel free to meddle, knowing that America must bear the consequences. If we clearly state our intent to leave, these states will have incentive to intervene constructively; it would endanger their own security if Iraq were to become a failed state or a launching pad for international terrorism. Even Shiite-dominated Iran, which has become the region's largest power as a result of the war, would not want an Iraqi haven for Sunni-controlled al-Qaeda.