From the U.S. Army War College:

This document provides an overview of Department of Defense (DoD) Information Operations (IO) doctrine and organizations at the joint and individual service levels. It is intended to serve students and staff of the US Army War College as a ready reference for IO information extracted and summarized from a variety of sources. Wherever possible, Internet web sites have been given to provide access to additional and more up-to-date information. The booklet is intentionally UNCLASSIFIED so that the material can be easily referenced during course work, while engaged in exercises, and later in subsequent assignments.

This booklet begins with an overview of Information Operations and Strategic Communication. The booklet then goes from the national level to the Department of Defense, to the Joint Operations level and then finally to the service level. At each level it describes strategies or doctrine, agencies, organizations, and educational institutions dedicated to the information element of national power. Finally, the document concludes with an overview of Information Operations Condition (INFOCON) and an IO specific glossary.