This HillStudy explores why space is a strategic concern and how it can affect stability between and among states. It begins with an overview of the space age that emerged during the Cold War, followed by an examination of the shifts in strategic perceptions that occurred in the 1990s and 2000s. In addition to discussing the trends of crowding and competition, the paper describes how the space domain has become more contested, including through the pursuit of what are known as “counterspace” capabilities (i.e., things that can interfere with, damage or destroy space objects, the platforms on which they rely and the connection between the two). It then examines the legal framework and certain diplomatic initiatives relevant to space security and s.tability, and the complexities they involve. The final section of this HillStudy is focused on Canada’s international and defence policy in relation to space
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