An examination of the mandates of the Committee on the Peaceful Uses of Outer Space (COPUOS) and the Conference on Disarmament (CD) reveals that their individual mandates do not necessarily encompass all uses of outer space. Rather, depending on the interpretation of their mandates, the military use of outer space can be discussed in either forum or in neither. This begs the question in which forum the military uses of outer space are discussed internationally. This question is the focal point of this book. This introduction outlines the importance of this question by describing the extent of the military use of outer space. Furthermore, it lays out the structure of the research, which is divided into three parts. First, the research will examine the initial mandates given to COPUOS and the CD. Second, the research will analyse the further development and practical interpretation of those mandates. Finally, the research will assess the effectiveness of the current UN space-related framework to cope with near to medium future space matters that affect both the military and non-military use of outer space.