Since 2007, security has improved dramatically in Iraq. The U.S. and Iraqi governments - and most Iraqis - want to see both the U.S. presence there reduced and the Iraqi government and security forces assuming a greater role in providing for public security. The challenge is to effect this drawdown while preserving security and stability in the country and in the region. In response to tasking from the U.S. Congress, RAND researchers conducted an independent study to examine drawdown schedules, risks, and mitigating strategies. They identified logistical constraints on moving equipment out of the country, assessed trends in insurgent activity and the ability of Iraqi security forces to counter it, and examined the implications for the size of the residual U.S. force and for security in Iraq and the region. This book presents alternative drawdown schedules - one consistent with the Obama administration's stated intentions and two others, one somewhat slower and another faster - that are responsive to these factors. It also recommends steps that the United States can take to alleviate anticipated constraints, overcome likely resistance, and reduce the potential risks associated with a drawdown. For more than 60 years, decisionmakers in the public and private sectors have turned to the RAND Corporation for objective analysis and effective solutions that address the challenges facing the nation and the world.