This report to Congress, Measuring Stability and Security in Iraq, includes specific performance indicators and measures of progress toward political, economic, and security stability in Iraq, as directed by legislation. This is the twentieth report in this series of quarterly reports. The most recent report was submitted in May 2010. As a consequence of the movement of U.S. combat forces out of Iraqi cities on June 30, 2009, the United States has reduced visibility and ability to verify Iraqi reports. Without a robust U.S. presence, United States Forces-Iraq (USF-I) metrics include host nation reports that are not independently verifiable. The overall trends between U.S. force data and host nation data are very close, but some values may differ. Current charts show a combination of U.S. and host-nation reported data. The combination of these reports causes baseline numbers to increase, making it difficult to compare these charts with those from previous publications of this report. Each slide is annotated to indicate the types of reports included. Political, rule of law, economic and energy, and security trends in Iraq continued to improve this period, but progress was limited as the Iraqis remain focused on forming the government following a successful election. The ISF have executed their security responsibilities extremely well, maintaining historically low levels of security incidents. All operations are conducted by, with, and through the ISF, while U.S. Forces continue to advise, train, assist, and equip the ISF to improve their capabilities and capacity. Meanwhile, USF-I is on track to complete the transition to stability operations by September 1, 2010. The ongoing implementation of the SFA this reporting period sets the stage for long-term cooperative efforts as Iraq develops into a sovereign, stable, self-reliant partner in the region and as the United States transitions roles and responsibilities from U.S. Forces to the GoI, the U.S. Embassy Baghdad, and other non-USF-I entities. The tentative resumption of foreign investment is an indicator that the continued reductions in overall violence have provided Iraqis an environment where political and economic development can occur. In spite of progress this period, challenges remain. Violent extremist networks, while significantly degraded, are still able to execute attacks. Tensions will remain high until the government is seated. Iraq remains fragile, primarily because many underlying sources of political instability have yet to be resolved. Once the new government is formed, it will need to continue to build legitimacy through the provision of basic services and improved security for the Iraqi people, the formulation of a solid plan for long-term economic growth and employment, and the creation of enduring solutions to lingering political, ethnic, and sectarian disputes.