As humankind gears up to explore outer space in person (as opposed to using robotic envoys), there are several open-ended questions when it comes to sovereignty and methods of governance and control that should, could or would be used in such scenarios. This article aims to explore the situation where outbound crewed space missions are undertaken and eventually reach their destination with the purpose of setting up a settlement/colony or outpost on some such heavenly bodies as the moon, or Mars. The focus of this article relates to the questions of whether a clearcut military type chain of command, or rather civilian (e.g., democratic) system of governance is needed for the success of such a mission en route, as well as the role of the commander as ultimate authority on a voyage. The second question relates to whether a continuation of such military chain of command structure will be followed after arriving at the destination.