This latest offering from the indefatigable National Security Archive (NSA) is part of its ongoing Guatemala Documentation Project, which has worked for the release of numerous secret US files on Guatemala. A central focus of the project has been shedding light on the secretive intelligence and security apparatus of Guatemala and US-Guatemalan military cooperation, especially with regard to human rights abuses. This site offers an overview of the project and a two-part report. The first part presents data (in Rich Text Format) on 79 key military units and officers, organized by unit and alphabetically by each officer's name with a resume of each officer's career. The second part of the report, placed online this week, presents digital images of 48 primary documents, with descriptions. Once again, the NSA is to be congratulated for its hard work, diligent Freedom of Information Act (FOIA) requests, and for making its important discoveries freely available to all online.