Fight for the Final Frontier: Irregular Warfare in Space by John J. Klein. Naval Institute Press, 2023, 264 pp.

John J. Klein’s Fight for the Final Frontier: Irregular Warfare in Spacecompellingly examines the application of irregular warfare principles in outerspace. Drawing extensively on maritime warfare theory, the author providesa structured and historically grounded framework that enriches the strategicunderstanding of space as a contested domain. At a time when geopoliticalcompetition between the United States and China increasingly transcends theEarth’s surface, Klein’s work stands out as a seminal and timely contributionto military and strategic thought.