How do concepts of warfare apply to space? Is there such a thing as irregular warfare, asymmetric tactics or hybrid warfare in space? Dr John 'Patsy' Klein, Senior Fellow and Strategist at Falcon Research, Inc. and Adjunct Professor at the George Washington University Space Policy Institute and Georgetown University's Strategic Studies Programme, helps us unravel these terms, discussing how they apply to space and why strategies on war do not need to be rewritten for the 'final frontier'.