Rather than a stand-alone military Branch currently promoted by President Trump, a number of experts are advancing the possibility of a “Space Guard,” modeled more closely after the U.S. Coast Guard, that is able to provide management, enforcement, and structure in the new frontier. This might include the enforcement of laws and agreements relating to space economic activity like mining, bases, or tourism, responsibilities that a military branch might be ill-suited to meet.
Source: As Trump pushes Space Force, support quietly builds for ‘Space Guard’ – POLITICO