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    Press Releases

    Cover page of white paper

    Militarisation of the Stratosphere White Paper


    This white paper provides a short history of the militarisation of the stratosphere and great power competition, tracking key developments from the 1990s until the present. It also analyses the military significance of the two main classes of high-altitude UAVs: High-Altitude Long-Endurance (HALE) and High-Altitude Platform Station (HAPS) platforms.