This letter, between al-Qaeda leaders Ayman al-Zawahiri and Abu Musab al-Zarqawi, was reportedly retrieved in Iraq through counterterrorism activity. It is dated July 9, 2005 and was released by the United States Office of the Director of National Intelligence in October 2005, which claims its authenticity. The letter discusses al-Qaeda plans including specific steps for attaining jihad in Iraq, and how to proceed following the departure of US military forces from Iraq.

