As terrestrial weapons systems are reduced, space systems increase in numbers and applications. Maj Steven R. Petersen's study represents the first effort to tie together in one document US doctrine, policy, and implementation planning for the use of offensive weapons in space. Structured around the concept of space control, he creates a picture of offensive space operations that are quite similar to traditional air superiority operations. Major Petersen's study provides a timely guide to the evolution of space as another theater of warfare. It identities key doctrinal and operational challenges that lie ahead.