ABSTRACT
This chapter analyzes Canadian security needs within the specific area of space based earth imaging. It expounds the international law norms regulating the security of States, namely the right to self-defence, aggression, and threats thereof, and reviews the interface between these norms and the use of space-based earth imaging technology. The ability to conduct satellite surveillance is critical for Canadian security needs. Canada's uses of satellite imagery in support of its national objectives require it to have degree of self-sufficiency. The ability to conduct satellite surveillance is critical for Canadian security needs. Space represents proverbial 'high ground' for military operations. The mission of national defence involves the protection of Canada from a belligerent state. In this case, space imaging can permit the detection of a threat platform carrying weapons, which have the potential to endanger our territory and citizens. Such platforms, being land-, sea- or air-based, fall clearly within the definition of aggression espoused within corpus of international law.
