Content: This research paper addresses the roles and missions of the U.S. Army that support U.S. national interests in space. 134 pp. Contents: abstract; Chapter 1: Introduction; Chapter 2: Intelligence and Electronic Warfare; Chapter 3: Communications; Chapter 4: Command and Control; Chapter 5: Close Combat; Chapter 6: Fire Support; Chapter 7: Air/Space Defense; Chapter 8: Combat Support; Chapter 9: The Theater Nuclear Battlefield; Chapter 10: Chemical and Biological Warfare; Chapter 11: Combat Service Support; Chapter 12: Organization for Space; Glossary; Bibliography; Annex A: Summary of Treaties Relevant to Outer Space. It lists two annexes that are published separately: Annex B (Intelligence) and Annex C (Electronic Warfare). .