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The United Nations Space Alliance (UNSA) is an international political organization that handles matters related to trade, travel, land claims and all efforts relating to human space colonization. Their military force is represented by the Solar Associated Treaty Organization (SATO). It is currently opposed by the Mars-based Settlement Defense Front.
The UNSA was created as a means to control and monitor off-world colonies in order to obtain resources to maintain Earth geo-engineered atmosphere, which was necessary to resources shortages and climate change on Earth.
