Whenever a new technology is developed a new domain becomes accessible, there’s often a brief window before it’s weaponised.The first computer predates the first hacking attack, the first aircraft were not armed, and the first satellites were blissfully immune to any targeting or attack. But humans are humans, and if there’s a target to hit, sooner or later militaries will try to find a way to hit it. And where a domain becomes particularly valuable (in the way space has becomes) it makes sense that it will not remain immune to attack forever. In this episode I begin what I hope is a miniseries (to be spread out over time) on war as a domain for competition and, potentially, warfighting. I look today specifically at the basics of space combat, and some of the tools available to nations who want to take the fight to an opponent’s space-based capabilities.