Cis-lunar space and the security dilemma.

Discussions about space security have long focused on Earth orbit, where satellites are extensively used to support military activities on the surface of the planet, and where that use makes satellites themselves potentially attractive targets. This is about to change, as the US military prepares to expand its activities into the vast region between Earth geosynchronous orbit and the moon, an area otherwise known as "cis-lunar space." If it does, the militaries of other countries will surely follow. But it does not need to be this way. The demarcation of Earth orbit and cis-lunar space provides a clear line upon which a demilitarization commitment could be based. We can still develop the moon and the region around it, but as we have learned from decades of activity in Earth orbit, developing space in a sustainable way requires foresight, planning, and cooperation. Space must be recognized as an environment that is worth preserving, and as one in which fast-paced alterations can have unintended consequences. [ABSTRACT FROM AUTHOR]