This report is the second by the Combating Terrorism Center at West Point to assess the demographics, procedures, finances, and leadership of al-Qa'ida's foreign fighters, especially those currently fighting in Iraq. This report analyzes al-Qa'ida in Iraq's (AQI) operations from spring 2006 to summer 2007 and is being issued with a trove of AQI documents captured by coalition forces near Sinjar, Iraq. The documents include almost 600 AQI personnel records for foreign fighters crossing into Iraq, AQI contracts for suicide bombers, AQI contracts for fighters leaving Iraq, narratives written by al-Qa'ida's Syrian smugglers, and AQI financial records. The CTC also acquired demographic information on all Third Country Nationals (TCNs) in detention at Camp Bucca, Iraq. Most of this data has not previously been released to the public.