A seasoned scholar, strategist, and expert in space policy and strategy, Dr. John J. Klein is well-versed in applying strategic theory to the space domain. In his new book, Fight for the Final Frontier: Irregular Warfare in Space (2023), Klein argues that irregular warfare, in both its military and nonmilitary forms, is a vital and underutilized concept for understanding malicious activities in space and the nature of space warfare. His argument draws on a diverse list of strategic theorists, historians, and contemporary policy analyses. Klein weaves these sources together persuasively, providing an accessible overview of a technologically demanding subject. Policy generalists and students, along with veteran analysts of space policy, will benefit from his account.

As the world’s infrastructure becomes increasingly interconnected, more critical systems are exposed to cyber threats. A cyber threat is a malicious act intended to steal, damage, or disrupt digital data. Cyber threats seek to turn potential security vulnerabilities into attacks on systems and networks.

Orbiting satellites perform many tasks: communications, broadcasting, weather forecasting, earth observation, intelligence-gathering, and scientific research. The first satellite, launched in 1957, was a modest metal sphere containing a simple radio transmitter. Since then, satellites have grown in size and complexity. Many are visible to anyone with a reasonably powerful backyard telescope.