There's a theoretical war In space with satellite sabotage and a host of other things. He wants an arm of the military to deal with military threats that can happen in and via space. You want to criple America, take out their satellites and the country grinds to a halt and goes dark so to speak. I don't think he literally wants a bunch of space cadets to fight off aliens and the like. Though you can never really say never with DonaldI still haven’t heard anyone question Trump on what the purpose of the space force will be and what an average day for a space soldier would entail.