While a small group of European countries led by France launched an observation system for intelligence purposes in the 1980s, Europe only started to take an interest in military space after the end of the Cold War in the 1990s.

Military uses of space encompass two broad categories. On the one hand, space assets can be used to support military operations on the ground. This trend, called “space militarization”, started during the Cold War with the intensive use of Earth Observation (EO) and telecommunication satellites by the United States and the Soviet Union. The rise of satellite navigation applications in the early 1990s then allowed space to become a real “force multiplier” for military forces. On the other hand, space could become a war environment in itself, with space systems being targeted by so called anti-satellite weapons (asats). The deployment of such weapons by the U.S. and the Soviet Union never materialized during the Cold War, but the evolution towards “space weaponization” has figured at the top of the international agenda in recent years. It was fueled by the U.S. military space doctrine aiming at “space dominance” and the Chinese asat test of January 2007. While space militarization has been recognized by the UN ever since the 1960s and is today accepted by all countries, space weaponization now appears to most as a dangerous evolution and is the subject of several arms control and confidence-building efforts. Today, Europe is active in both these areas. A number of military applications are developed either by European countries, or under the leadership of the European Union – the future beneficiary within the EU being the Common Security and Defense Policy (CSDP); EU member states also drafted a Code of Conduct (CoC) for Outer Space Activities, an original and key initiative to ensure stability in the space environment.