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Q&A

How to detect trespassing in space?

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So, the United Terran Federation and the Qulian Star empire have been in really bad terms lately. Wars, skirmishes, it pretty bad. So, the UTF and QSE have made an agreement. No ships piloted by citizens from either nation are allowed to trespass on the others space. If they do, that ship's crew can be arrested, and the ship itself will be impounded. But there is a fundamental problem with this agreement: both sides have a territory spanning more than 1,000 Light years, and it would be impossible to patrol all of that area with military ships.

So, how could you detect trespassers in our space?

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This post was sourced from https://worldbuilding.stackexchange.com/q/115166. It is licensed under CC BY-SA 4.0.

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