Space, once seen as the benign final frontier, has evolved into a crowded potential battleground that the U.S. must defend as conflicts extend beyond Earth, according to the Air Force’s top military space official.
Which is why I've long argued that the Air Force should give the Army the job (and money) for ground support and "aim high" to become the Aerospace Force.
Divisions of responsibility are up for grabs (and I refined thoughts after that initial post) within that broad division of responsibilities. But the key is to get the Air Force to think of controlling and using the region above the earth as one continuum from the atmosphere to orbit.
A Space Navy can come later when we move beyond the Earth-Moon system.