In the context of the new attention given by the states to the three strategic "oceans", the air and space domain embodies duality. On the air side, the rule of law is already quite clear. The real issue revolves around the space side of the subject. Given the growing need for space facilities to ensure a coherent military strategy, force projection, surveillance, intelligence, etc. It is necessary to address the legality of conducting an attack in orbital space against such installations.