June 2007 Center for a New American Security publication - Phased Transition: A Responsible Way Forward and Out of Iraq by James Miller and Shawn Brimley.

The U.S. military will withdraw from Iraq; the question is when and under what conditions. This report will provide a realistic appraisal of America’s enduring interests in Iraq — no al Qaeda safe havens, no regional war, and no genocide — and to provide a Phased Transition plan that identifies specific steps the Bush administration can take to make these outcomes more likely while also preparing for the worst and begins planning for subsequent phases. At this dangerous moment, such realism is essential to increasing the prospects that the United States will get out of Iraq more responsibly than it got in...