This Special Bibliography Series, Number 106, *Harnessing the Heavens: National Defense Through Space, was developed by History Bibliographer and Reference Librarian Mr. Elwood L. White, in support of the 21st Triennial (previously biennial) Military History Symposium to be held at the Air Force Academy, 1-3 November 2006. This bibliography lists a selected portion of the McDermott (Cadet) Library's holdings on national defense through space. While it includes books and journal articles, it excludes newspaper articles and most pictorial works dealing with space defense. The call number listed at the end of each citation is typically the call number assigned by the Library of Congress, which most libraries use when adding books to their collections. The 10 sections of the bibliography are labeled as follows: I. Historical Background: The Strategic Defense Initiative, II. Historical Background: Other Aspects, III. Overviews of Military Space, IV. Weaponization of Space, V. Command and Control from Space, VI. Space Surveillance, VII. Satellite Navigation, VIII. Ballistic Missile Defense, IX. Space Forces and Space Operations, and X. Reference Works.