The National Military Strategy of the United States of America

Citation
Joint Chiefs of Staff, National Military Strategy of the United States of America (2004) (full-text).

Overview
This publication was was an action plan for the Armed Forces to support the National Security Strategy and National Defense Strategy. It emphasized three priorities: fighting terrorism; enhancing joint warfighting; and transforming the joint force to meet military objectives in the near and far terms. It notably included cyberspace as one of the domains of the battlespace along with air, land, sea, and space.

Source

 * An Assessment of the DoD Strategy for Operating in Cyberspace, at 4.