We have slightly updated this article, and given its continued relevance we have decided to reblog it. Soon we will publish an article which will discuss this topic in more detail.
When space settlements are reality, they will have to interact with other human communities, whether these are other space settlements or terrestrial communities. Especially in the early days of human space colonization, almost every space based community will be dependent on both the Earth and other space settlements, since it will be highly unlikely that one (small) space colony can be entirely autarkic. Therefore space based communities are required to maintain international relations and so they are in need of a foreign policy. In this post I will, for the sake of the argument, assume that space settlements will be sovereign entities, which are free to manage their own affairs.
Relations with terrestrial nations
Basically we have to distinguish between international relations with terrestrial nations on one hand and with other space settlements. This reason for this distinction is simple, for the next few decades, and probably for…
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